Application Article Center
Application Notes & Research Insights
Discover technical articles, application cases, and characterization methods for advanced battery development."
Rapid Screening of Electrolyte Rate Performance via Electrode Tortuosity and the McMullin Number
Abstract The MacMullin number (also spelled McMullin number; symbol \(N_m\), defined as \(N_m = \tau/\varepsilon = \sigma/\sigma_{eff}\)) quantifies effective ionic transport resistance inside porous battery electrodes — the ratio of...
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How to Evaluate Coating Uniformity on Current Collectors: A Resistivity-Based Method
1. Preface Copper and aluminum foils serve as essential current collectors in lithium-ion battery electrodes, conducting electrons and supporting the active material layer. Their chemical and electrochemical stability significantly impacts cell performance,...
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Analysis of Swelling Thickness and Swelling Force in LiFePO4 Cells
Abstract LiFePO4 Cell swelling during charge/discharge can be characterized by two related but distinct measurements: thickness swelling (dimensional change under constant applied pressure) and swelling force (force generated under a fixed, constant gap). Using the IEST...
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Application Issues Analysis of Si Anode in High Energy Density Lithium-ion Batteries
1. Abstract The pursuit of higher energy density in lithium-ion batteries has positioned silicon as a promising next-generation anode material due to its high theoretical capacity. However, its practical implementation...
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Effect of External Pressure Modulation On All Solid-state Battery Performance
Abstract ASSB (All-Solid-State Battery) is an electrochemical energy storage device in which both electrodes and the electrolyte are solid-phase materials, eliminating the flammable liquid electrolyte used in conventional lithium-ion cells. External pressure...
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Visualizing the Electrolyte Filling Process in Li-ion Batteries Using X-ray Imaging
1. Abstract Electrolyte filling is a critical step in lithium-ion cell manufacturing. Poor wetting increases internal resistance, reduces capacity, and can create localized current hotspots that promote lithium plating...
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In-Situ Analysis of Expansion Behavior in Silicon-Carbon Composite Cells
1. Introduction To enhance the energy density of lithium-ion batteries, advancements in both materials and manufacturing processes are essential. Silicon offers a theoretical specific capacity (~4,200 mAh·g⁻¹ as LixSi, x...
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Electrochemical Dilatometry of Different Proportions of Silicon Carbon Composite Anode Electrodes
1. Author Information and Article Abstract In 2020, DanielP. Abraham’s team used an electrochemical dilatometry to characterize the thickness expansion of silicon carbon composite anode electrodes, quantified the difference in...
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Summary of The Latest Breakthroughs In Solid-state Battery
The following are recent developments and innovative approaches in the field of solid-state battery, with some findings excerpted from reports by universities and research institutions. 1. Negative electrode-free all-solid-state battery,...
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Entering Electrochemistry | Using EIS Technology for Consistency Screening of Lithium-ion Battery
1. Introduction — Why Consistency Screening Matters In electric vehicles and energy storage systems, lithium-ion batteries are connected in series and parallel to form modules and packs. The performance and...
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Cathode Compaction Density: Factors Affecting Electrode Sheets and Optimization Strategies
Abstract Compaction density—defined as the mass of active material per unit volume of the calendered electrode sheet—is a primary design parameter for cathode electrode sheets in lithium-ion batteries. It quantifies...
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Solid-state Batteries 25 Q&A: Key Technical Commercialization Challenges and Market Prospects
1. Technical Features and Validation of Solid-State Batteries The core promise of solid-state batteries lies in their potential for enhanced safety and energy density compared to conventional liquid electrolyte systems....
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