Application of EIS Testing To Lithium Battery On Pressure Condition
Abstract EIS testing on LCO/graphite pouch cells shows that module-level compression pressure increases low-frequency impedance and charge transfer resistance ($R_{ct}$), and this…
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In-Situ Cell Swelling
Impact of Stiffness Constraints (Linear Regime) on Battery Cell Performance
1. Preface The in-situ swelling analyzer (SWE) launched by IEST has constant pressure and constant gap test modes, which can monitor the thickness evolution of the cell under cons…
In-situ Swelling Analysis of NCM Cells Under Different Constant Pressure Conditions
1. Abstract This study utilizes an In-situ Swelling Analyzer (SWE) to investigate the thickness evolution of an NCM cell under varying constant pressure conditions (50N, 500N, 100…
Blade Cell Expansion Testing: Insights for Blade Battery Technology and Design
Abstract Blade battery technology refers to a long, thin, blade-shaped lithium-ion cell format — most commonly using lithium iron phosphate (LFP) chemistry — that is embedded dire…
Pouch Cell In-situ Analysis of the Volume and Thickness Swelling Behavior
Abstract Pouch cell swelling refers to the reversible and irreversible dimensional changes—in volume and thickness—that occur during lithium-ion intercalation and de-intercalation…
Single Battery Cells and Module Cells’ Swelling Performance Correlation Analysis
Abstract EV battery cell swelling compensation design depends on understanding how swelling behaves differently in thickness versus force as cells are stacked into modules. This s…
Investigation of Silicon-based Anode Battery Performance Under Different External Pressures
1. Author Information and Article Abstract Recently, Peng Tan’s group (first author Zhiyuan Zhang) at the University of Science and Technology of China (USTC) investigated t…
Three Stages of Lithium Plating in LFP Pouch Cells: Dynamic EIS and In-Situ Thickness Detection
Abstract Lithium plating on graphite anodes during fast charging or low-temperature operation presents a major safety and lifetime risk for lithium-ion batteries. This study integ…
Characterization and Quantification of Multiphysics Coupling in Lithium-ion Batteries Under Mechanical Constraints
Research Topics：Characterization and Quantification of Multi-field Coupling in Lithium-ion Batteries Under Mechanical Constraints First Author: Xue Cai Corresponding Authors: Cai…
Analysis of Battery Cell Swelling and Swelling Force: Choosing Test Parameters for Reliable In-Situ Expansion Measurements
Abstract Cell swelling refers to the thickness expansion and internal force generation that a lithium battery cell exhibits during charge-discharge cycling, arising from electrode…
A Systematic Guide to Lithium-Ion Battery Failure Analysis: Methods and Instrumentation
Abstract Battery failure analysis is the systematic process of identifying and characterizing the root causes of performance degradation and safety incidents in lithium-ion cells.…
Limiting Factors of Fast Charging Technology and Analysis of Lithium Plating Windows
Abstract The limitations of lithium-ion battery fast charging speed arise from six interacting factors: electrode and electrolyte material properties, environmental temperature an…
