The relentless pursuit of higher energy density, longer cycle life, and enhanced safety in electrochemical energy storage has positioned the lithium-ion battery (li ion battery) as a cornerstone technology. At the heart of its operation lies a critical, yet not fully understood, interfacial component: the Solid Electrolyte Interphase (SEI). This passivating layer, formed in situ on the anode surface during… Read more: SEI Films in Li-ion Batteries: Composition, Evolution, and Optimization

I approach the rise of the solid state cell as the central strategic question for any resource-rich industrial region that wants to convert geology into advanced manufacturing. In my first-person assessment, the solid state cell is not simply another battery chemistry. It is a platform technology that can reshape material demand, manufacturing architecture, supply-chain geography, and regional competitiveness at the… Read more: Solid State Cell Pathways

In the context of global traditional energy shortage and increasing environmental pollution, solar energy has become one of the most abundant renewable energy sources due to its cleanliness, accessibility, and renewability. A solar inverter is the core component that connects photovoltaic panels to the grid, and its operational efficiency directly influences the overall performance of a photovoltaic power station. To… Read more: Photovoltaic Inverter Data Acquisition System Based on MODBUS-RTU

In modern power systems, the grid connected inverter plays a pivotal role in integrating renewable energy sources and ensuring power quality. As a critical interface between distributed generation and the grid, the performance of a grid connected inverter directly impacts grid stability and efficiency. Therefore, enhancing control precision and reducing output current ripple have been central focuses in the development… Read more: Double Optimization Three-Vector Model Predictive Current Control for Grid Connected Inverter

With the continuous expansion of global photovoltaic installed capacity, the operational health of solar panel arrays has become a critical concern for sustainable energy production. Foreign objects such as dust, leaves, bird droppings, and other debris on the surface of solar panels can significantly reduce the power generation efficiency and even cause hot-spot effects that permanently damage the modules. Traditional… Read more: Intelligent Inspection of Foreign Bodies on Solar Panels

As a researcher deeply engaged in advanced energy storage materials, I have long been fascinated by the enormous gap between the theoretical promise of silicon and its practical failure in Li-ion battery cells. Graphite, the commercial standard for decades, delivers a modest theoretical specific capacity of 372 mAh·g−1. Silicon, by contrast, offers 4 200 mAh·g−1 through the formation of Li22Si5… Read more: Porous Silicon–Carbon Composite Anodes for Li-ion Battery

In the field of renewable energy integration, various types of solar inverters are employed to interface photovoltaic or wind power sources with the utility grid. Among these, the LC-type grid-connected inverter is widely adopted due to its superior high-order harmonic filtering capability. However, the performance of model predictive control (MPC) for such inverters is highly sensitive to parameter mismatches of… Read more: Robust Model Predictive Control for LC-Type Grid-Connected Inverters Based on Online Parameter Identification

As a researcher deeply involved in the field of energy storage, I have witnessed the rapid expansion of battery energy storage systems in recent years. The global installed capacity of new energy storage has reached 91.3 GW by the end of 2023, with lithium-ion batteries dominating the market. However, the safe and reliable operation of these systems critically depends on… Read more: Review of State Estimation for Battery Energy Storage Systems

In recent years, as global climate change, environmental pollution, and energy crises have become increasingly severe, traditional internal combustion engine vehicles have struggled to meet the demands of sustainable development. To reduce emissions, conserve energy, and protect the ecological environment, governments worldwide have intensified support for the research and promotion of new energy vehicles. Pure electric vehicles have emerged as… Read more: Comprehensive Review of Joint State of Charge and State of Health Estimation Strategies for Lithium-ion Batteries

In my work on photovoltaic devices, I have focused on the fact that the perovskite solar cell has rapidly become one of the most promising candidates for next-generation energy conversion because of its exceptional optoelectronic properties, tunable bandgap, and low-cost solution processability. Since the first report of a perovskite solar cell based on organometal halide perovskites as visible-light sensitizers, the… Read more: Synergistic Modification for Perovskite Solar Cells

In the context of sustainable human development, energy remains a crucial material foundation. Analyzing current utilization and consumption patterns reveals that coal, crude oil, and natural gas are still the three primary fuels. However, studies on their extractable reserves and production lifespan indicate that domestic storage levels are significantly below the global average. As the consumption of fossil fuels accelerates,… Read more: Analyzing the Operational Efficiency of Flow Energy Storage Cells in Power Grids

I have focused my research on the control of single-phase grid-connected solar inverters because these power electronic interfaces determine the quality, stability, and safety of photovoltaic energy delivered to the utility grid. In my work, I treat the solar inverter not merely as a DC–AC converter but as a cyber-physical system that combines power conversion, synchronization, current regulation, filtering, and… Read more: Virtual Space Vector Control for Single-Phase Solar Inverters

As a researcher in renewable energy systems, I have focused on enhancing the quality of current delivered to the grid by grid-connected photovoltaic power generation. The core component in such systems is the solar inverter, which converts DC power from solar panels into AC power synchronized with the grid. In this article, I delve into the design and performance of… Read more: Study on the Application Performance of New Single-Phase Solar Inverters

In the pursuit of advancing renewable energy technologies, thin film solar panels have emerged as a promising alternative to traditional silicon-based photovoltaics due to their lower material costs, flexibility, and potential for large-area deployment. Among various thin film technologies, copper indium gallium selenide (CIGS) solar cells have garnered significant attention for their high conversion efficiencies and stability. A critical component… Read more: Optimization of CdS Buffer Layer Deposition for High-Efficiency CIGS Thin Film Solar Panels

In recent years, the rapid development of renewable energy and electric vehicles has intensified the demand for efficient energy storage systems. Lithium-ion batteries have dominated the market due to their high energy density and long cycle life. However, the scarcity and uneven distribution of lithium resources, coupled with rising costs, have prompted the exploration of alternative battery technologies. Sodium-ion batteries… Read more: Synthesis and Performance of Sodium Manganate as Cathode Material for Sodium-Ion Batteries

In my research, I focus on the accurate estimation of the State of Charge (SOC) and prediction of the Remaining Useful Life (RUL) for lithium-ion energy storage batteries deployed in communication base stations. The rapid expansion of 5G networks has made the reliability of backup power systems increasingly critical, and the energy storage battery serves as the last line of… Read more: Research on State Prediction Methods for Energy Storage Battery in Communication Base Stations

I propose a grid voltage control strategy for solar inverters that enables them to actively participate in voltage regulation rather than merely injecting maximum active power. In my approach, the solar inverter continuously estimates the grid impedance ratio \(\alpha = R/X\) online and dynamically adjusts its active and reactive power commands to keep the point of common coupling voltage within… Read more: Grid Voltage Control of Solar Inverters via Online Impedance Ratio Estimation

With the rapid development of the global economy, the demand for energy has been increasing, leading to an inevitable energy crisis. To accelerate the energy transition, the widespread adoption of solar energy has become a common choice worldwide. Photovoltaic power must be transmitted to load centers through long transmission lines and multiple transformers, which increases grid impedance and results in… Read more: Analysis and Optimal Control of Static Power Stability Region for Utility Interactive Inverters in Weak Grids

This study systematically investigates the thermal runaway mechanisms and gas evolution patterns in 100Ah LiFePO4 pouch batteries under various states of charge (SOC). Through comprehensive experiments involving side-heating triggering methods and advanced characterization techniques, we reveal critical insights into energy release characteristics and safety implications. 1. Thermal Runaway Dynamics The thermal runaway process in LiFePO4 batteries exhibits four distinct phases:… Read more: Thermal Runaway Characteristics and Gas Generation Behavior of Large-Capacity LiFePO4 Pouch Batteries

In my research, I address the critical safety challenge of thermal runaway in lithium-ion batteries, which poses significant risks in energy storage systems and electric vehicles. As the energy density of lithium-ion batteries continues to increase, the potential for fire accidents escalates, threatening lives, property, and the environment. My work focuses on developing an advanced fire suppression system that leverages… Read more: Nitrogen-Assisted High-Pressure Fine Water Mist for Lithium-ion Battery Fire Suppression

The rapid advancement of the Internet of Things (IoT) has positioned wireless sensor networks as a cornerstone of modern technology. These networks, comprising thousands of interconnected sensor nodes, are deployed across diverse environments to monitor parameters such as temperature, humidity, noise, electromagnetic fields, and seismic activity. However, the reliance of most sensor nodes on conventional batteries presents a significant bottleneck.… Read more: Research on Solar Panel Integrated Antennas for Hybrid Energy Harvesting Systems

As a researcher and engineer in the field of photovoltaic manufacturing, I have dedicated significant effort to advancing the production lines for thin film solar panels. These panels, such as cadmium telluride (CdTe) and copper indium gallium selenide (CIGS) types, represent a promising direction in solar energy due to their lower material usage, flexibility, and potential for higher theoretical efficiency—approaching… Read more: Intelligent Transmission System for Thin Film Solar Panel Production

Accurate assessment of the State of Charge (SoC) is a cornerstone for advanced Battery Management Systems (BMS) and is integral to the energy and power management strategies of modern microgrids. In systems incorporating pulsed or highly variable loads, the load power changes intermittently, placing dynamic stress on the energy storage battery. To ensure sustainability and reliability, the microgrid’s control systems… Read more: Research on Dynamic State of Charge of Energy Storage Batteries Based on Energy Integration

With the advancement of photovoltaic (PV) technology and the increasing demand for renewable energy integration, the role of solar inverters in modern microgrid systems has become more critical than ever. The transition from single-unit power generation to multi-inverter parallel systems has been driven by the need for higher capacity, enhanced reliability, and improved system flexibility. In my research, I focus… Read more: FCS-MPC Strategies for Parallel Single-Phase Solar Inverters

The widespread adoption of lithium-ion batteries (LIBs) across consumer electronics, electric vehicles (EVs), and grid-scale energy storage systems is a cornerstone of the modern clean energy transition. A typical li ion battery consists of a casing housing a core assembly of a cathode (e.g., LiCoO2, LiNixCoyMn1-x-yO2, LiFePO4), an anode (primarily graphite), a porous separator, and a lithium salt-based organic electrolyte.… Read more: Recycling and Sustainable Material Regeneration from Spent Lithium-Ion Batteries

In this thesis, I focus on the instantaneous power control problem of a microgrid that integrates a supercapacitor–lithium battery hybrid energy storage system (energy storage system). The motivation comes from the need to suppress DC bus voltage fluctuations and grid frequency fluctuations caused by high-power load steps in shipboard or islanded microgrids. A single type of energy storage system cannot… Read more: Research on Instantaneous Power Control of Microgrid Based on Supercapacitor–Lithium Battery Hybrid Energy Storage System

In the context of weak grids, photovoltaic-storage power plants utilizing grid-following control are prone to instability and oscillations. The method of integrating grid-forming inverters in parallel helps to enhance the small-signal stability of power plants. However, existing research on the ratio design of grid-forming inverters only considers the capacity factor and ignores other design degrees of freedom of grid-forming inverters,… Read more: Configuration and Design of Grid-Forming Inverters for Enhancing Small-Signal Stability of Photovoltaic-Storage Power Plants

I approach this topic from the viewpoint of an applied materials researcher working on high-energy lithium ion battery cathodes. The central motivation is simple: increasing the energy density of a lithium ion battery requires a cathode that can deliver high reversible capacity, operate at high voltage, and survive many cycles without catastrophic structural failure. High-nickel layered oxides, especially those with… Read more: Single-Crystal High-Nickel Cathodes for Lithium-Ion Batteries

As the global energy structure accelerates its transition toward cleaner and lower-carbon systems, the proportion of renewable energy in power grids continues to rise. Energy storage batteries, particularly electrochemical energy storage, have become indispensable for balancing the intermittent nature of wind and solar power. Among various technologies, all-solid-state energy storage batteries (ASSBs) have emerged as a next-generation solution due to… Read more: Research Advances in Key Materials and Technologies for All-Solid-State Energy Storage Batteries

The transition towards sustainable energy systems necessitates the development of efficient and cost-effective electrochemical energy storage technologies. Among these, sodium-ion battery technology has emerged as a highly promising candidate to complement, and potentially replace, lithium-ion batteries in applications such as large-scale grid storage and low-speed electric transportation. This promise stems from the abundant global reserves of sodium, its lower cost,… Read more: Advances in Closed-Pore Structure of Hard Carbon for Sodium-Ion Batteries

In my work on energy storage systems, I have found that accurate state estimation is critical for ensuring the safe, reliable, and economical operation of battery energy storage systems. These systems typically consist of thousands of individual cells connected in series and parallel, managed by a battery management system, and interfaced with power conversion equipment. The central challenge is to… Read more: State Estimation for Battery Energy Storage Systems: A First-Person Review

As a researcher in power electronics, I have extensively studied the challenges associated with photovoltaic (PV) systems under non-uniform irradiation conditions. The cascaded H-bridge multilevel inverter is a promising topology for solar inverters, as it allows individual control of each PV module’s output voltage, enabling maximum power point tracking (MPPT) for each unit. In this article, I will present a… Read more: Inverted Decoupling MPPT Control for Cascaded H-Bridge Solar Inverters

In this work, I investigate copolyvidone-based polymer electrolytes as a route to overcome the coupled interfacial and bulk transport limitations that continue to restrict the practical energy density, rate capability, and cycle life of the solid state battery. My central premise is that the abundant polar carbonyl groups in copolyvidone can serve as dynamic coordination sites for lithium ions, while… Read more: Copolyvidone Polymer Electrolytes for Solid-State Batteries

I have devoted my recent work to inverted perovskite solar cells because their low-temperature processability, tunable bandgap, and compatibility with flexible substrates make them one of the most promising platforms for next-generation photovoltaics. In my experience, however, the performance of inverted perovskite solar cells is still limited by two coupled problems: abundant defects in the perovskite absorber and imperfect charge… Read more: Synergistic EAI and ZrAcac Modification for High-Efficiency Perovskite Solar Cells

In recent years, the rapid development of new energy technologies has highlighted the importance of energy storage systems, with sodium-ion batteries emerging as a promising candidate due to their abundant resources, low cost, and environmental friendliness. These advantages position sodium-ion batteries as a key direction for large-scale energy storage applications. However, under extreme operating conditions such as high-rate charging or… Read more: Research on Multi-Stage Warning Method for Overcharging Thermal Runaway of Sodium-Ion Batteries Based on Anti-Entropy Weight Method

In recent years, lithium-ion batteries have become indispensable in various fields, including consumer electronics, electric vehicles, and energy storage systems, due to their high energy density, low self-discharge rate, and excellent cycle performance. However, the demand for faster charging and longer endurance has driven the development of power lithium-ion batteries, which face significant thermal safety challenges during high-rate charging and… Read more: Thermal Characteristics Analysis and Optimization of Power Lithium-ion Batteries

In the pursuit of carbon neutrality, building-integrated photovoltaic (PV) storage systems have emerged as a critical solution for decarbonizing the building sector. However, the inherent randomness of solar irradiance and the stochastic nature of occupant behavior introduce significant uncertainties in both PV generation and building load. These uncertainties challenge the economic dispatch of energy flows. Conventional deterministic optimization methods, which… Read more: Stochastic Optimization for Building PV-Storage Systems with Source-Load Uncertainty

In recent years, global environmental pollution, energy crises, and climate change have intensified, drawing increasing attention to new energy technologies worldwide. With the proposal of carbon peak and carbon neutrality goals, there has been a significant push to adjust energy structures and promote technological innovations, aiming to reduce reliance on traditional fossil fuels and accelerate the adoption of renewable energy… Read more: Investigation and Optimization of Liquid Cooling for Cell Energy Storage Systems Based on CFD Simulation

As the energy development strategy of our country continues to advance, renewable energy devices primarily based on wind and solar power are increasingly being integrated into power grids. However, these renewable energy devices do not possess the capability to actively participate in frequency response, which significantly reduces system inertia. Moreover, their output is highly uncertain and fluctuating, making it difficult… Read more: Adaptive Frequency Control Strategy of Battery Energy Storage Systems Considering Frequency Regulation Dead Band

In modern power systems, the proliferation of distributed generation resources and non-linear loads has led to the formation of weak grids, characterized by significant grid impedance and voltage distortions at the point of common coupling (PCC). For on-grid inverters, these conditions pose severe challenges to power quality and system stability, primarily manifesting as amplified current harmonics and reduced robustness. Traditional… Read more: Optimized Harmonic Suppression Strategy for On-Grid Inverters Considering Control Delay

As a renewable and environmentally friendly energy source, solar power has become a key direction in the global energy transition. Solar panels, as the core components of photovoltaic systems, are exposed to harsh outdoor conditions such as wind, rain, temperature fluctuations, sand, and hail, which inevitably lead to various surface defects including cracks, dust accumulation, and foreign object coverage. These… Read more: Deep Learning-Based Surface Defect Detection for Solar Panels

As an emerging technology in the field of energy storage, the all-vanadium redox flow battery has attracted widespread attention due to its excellent safety, long cycle life, flexible design, and environmental friendliness. In the context of global carbon neutrality goals and the rapid expansion of renewable energy integration, the energy storage battery systems based on vanadium redox flow technology have… Read more: Distributed Optical Fiber Temperature Sensing for Energy Storage Battery Systems

I started this work from a simple but pressing engineering question: how can a small solar module deliver clean, stable, grid-compatible alternating current with high efficiency, low harmonic distortion, and reliable maximum power tracking when sunlight and temperature are constantly changing? My research and design work therefore focused on a grid-connected micro-inverter rated at about 200 W. I treated the… Read more: Grid-Connected Micro-Inverter Design

In distributed generation systems, the inherent randomness of photovoltaic power generation often leads to grid frequency fluctuations, which significantly degrade the dynamic response of solar inverters during low voltage ride through (LVRT) events. This degradation may cause inverter disconnection and reduce the stability of the whole power system. In this paper, I present a comprehensive LVRT control strategy for solar… Read more: Low Voltage Ride Through Technology for Solar Inverters

The evolution of distributed generation, particularly photovoltaic (PV) systems, has placed stringent demands on the power electronic interfaces that connect them to the grid or local loads. A primary challenge stems from the inherent variability of the PV panel’s output voltage, which fluctuates significantly with irradiance and temperature. Conventional voltage-source inverters (VSIs), while prevalent, are fundamentally limited to a buck… Read more: A Comprehensive Analysis of a Novel Single-Stage Non-Isolated Buck-Boost Solar Inverter

Indium is a critical strategic metal whose unique physical and chemical properties make it indispensable in flat-panel displays, semiconductors, photovoltaic devices, and advanced energy systems. Among emerging photovoltaic technologies, the perovskite solar cell has attracted intense attention because of its rapidly increasing power conversion efficiency and low-cost solution processing. However, the commercialization of the perovskite solar cell and related thin-film… Read more: Neutral Phosphine Oxide Extraction of Indium from Spent Solar Cells

As a researcher working on electrochemical energy storage, I see the lithium-ion cell as the central technology for electric mobility, grid stabilization, and portable electronics. Among the many components of a lithium-ion cell, the positive electrode often limits the achievable energy density, cost, and safety. High-nickel layered oxides, especially those with the general formula LiNixCoyMn1−x−yO2 where x ≥ 0.8, have… Read more: Single-Crystal High-Nickel Cathodes for Lithium-Ion Cells

As I delve into the dynamic world of renewable energy, I am struck by the rapid advancements in thin film solar panel technology. Over the past few years, the industry has witnessed groundbreaking innovations that promise to reshape how we harness solar power. In this article, I will explore the major progress in domestic thin film solar panels, focusing on… Read more: Revolutionizing Energy: The Rise of Thin Film Solar Panels

I see the solid electrolyte cell as the most consequential next-generation energy-storage platform of this decade, not merely because it promises higher energy density, but because it can reorganize an entire industrial system around safer, denser, and more durable power. I write from a first-person planning perspective: I evaluate the opportunity, I test the bottlenecks, I map the resources, and… Read more: Solid Electrolyte Cell Industrialization Path

1. Introduction The integration of photovoltaic (PV) systems with energy storage batteries has emerged as a critical solution for enhancing energy self-sufficiency and reducing reliance on traditional power grids. In single-family residences, the operational efficiency of PV-energy storage battery systems is heavily influenced by electricity pricing models, such as tiered pricing and time-of-use (TOU) tariffs. This study investigates optimal operation… Read more: Optimal Operation Strategies and Performance Analysis of Photovoltaic-Energy Storage Battery Systems for Single-Family Residences Under Diverse Electricity Pricing Models

The global imperative for sustainable energy solutions has catapulted electrochemical energy storage to the forefront of scientific and industrial research. Among the various technologies, the li ion battery stands as a preeminent power source, particularly for the rapidly expanding electric vehicle (EV) market. Its superiority over traditional lead-acid and nickel-metal hydride systems lies in its exceptional combination of high energy… Read more: LiFePO₄ Cathode Materials: A Comprehensive Review on Evolution and Performance Enhancement

I investigated the recovery of indium from spent copper–indium–aluminum–selenium (CIAS) thin-film solar cell leachates by using neutral phosphine oxide extractants in hydrochloric acid media. Indium is a strategic critical metal whose unique physical and chemical properties make it indispensable in flat-panel displays, semiconductors, photovoltaic thin films, and advanced electronic devices. The rapid expansion of renewable energy technologies, including perovskite solar… Read more: Neutral Phosphine Oxide Extraction of Indium

As I delve into the evolving landscape of clean energy, I am continually struck by the rapid advancements in two pivotal domains: hydrogen fuel cells and thin film solar panels. These technologies represent not just incremental improvements but paradigm shifts in how we generate and utilize power. From my perspective, the integration of high-efficiency hydrogen systems and environmentally benign photovoltaic… Read more: Energy Frontiers

Modern microgrid systems require sophisticated energy management solutions to handle the intermittent nature of renewable sources like solar power. This paper presents a solar inverter-compatible battery management system (BMS) using TMS320F2812 DSP and LTC6811 monitoring IC, achieving ±5 mV voltage accuracy and ±1°C temperature precision through innovative circuit design. 1. System Architecture The proposed BMS architecture integrates seamlessly with solar… Read more: Design and Implementation of Energy Storage Battery Management System Integrated with Solar Inverter in Microgrid

With the continuous advancement of energy development strategies in our region, renewable energy sources such as wind and solar power are being integrated into the power grid at an increasing rate. However, these renewable energy devices lack the inherent capability to actively participate in frequency response, which significantly reduces the system inertia. Moreover, their output power is highly uncertain and… Read more: Adaptive Frequency Control Strategy of Battery Energy Storage System Considering Frequency Regulation Dead Band

The transition in the global energy structure and the pursuit of “dual-carbon” goals have positioned the lithium-ion battery as a cornerstone for electric vehicles, renewable energy storage systems, and portable electronics, owing to its high energy density, long cycle life, and low self-discharge rate. However, complex electrochemical aging during long-term charge-discharge cycles leads to capacity fade and State of Health… Read more: Predicting Lithium-Ion Battery Remaining Useful Life: A BBO-Optimized Interval Type-2 TSK Fuzzy Neural Network Approach

In recent years, the integration of distributed photovoltaic (PV) generation into power grids has accelerated, driven by global carbon neutrality goals. However, the increasing penetration of nonlinear loads in AC microgrids, such as those comprising PV systems with energy storage, often leads to current waveform distortion and harmonic pollution at the point of common coupling (PCC). This deteriorates power quality,… Read more: Multifunctional Grid-Tied Inverter for Power Quality Optimization in PV-Energy Storage Microgrids

With the rapid growth of grid-connected photovoltaic capacity, the impact of solar inverters on system safety and stable operation has become increasingly significant. In practical power grid operation, voltage sags are frequent events, often caused by short-circuit faults, large motor starting, and similar disturbances. Importantly, these voltage sags are predominantly unbalanced, meaning that the grid voltage contains a negative-sequence component.… Read more: Peak Current Control Strategy for Solar Inverters Under Unbalanced Voltage Sags

As a researcher in the field of electrochemical energy storage, I have been actively investigating cathode materials for sodium-ion batteries, which are emerging as a promising alternative to lithium-ion batteries due to their lower cost and environmental friendliness. Sodium-ion batteries, often abbreviated as SIBs, leverage the abundant sodium resources to enable scalable energy storage solutions for applications such as grid… Read more: Research Progress on NaV3O8 Cathode Materials for Sodium-Ion Batteries

In the realm of renewable energy systems, solar inverters play a pivotal role in converting DC power from photovoltaic panels into AC power for grid integration. As solar power plants scale up to megawatt levels, the demand for efficient, high-power inverters has intensified. Among various topologies, the three-level neutral-point-clamped (NPC) inverter has emerged as a preferred choice for medium-voltage, high-power… Read more: Neutral-Point Potential Balancing in Three-Level DPWM Solar Inverters