1. Abstract This article demonstrates a practical, quantitative alternative: using a IEST Battery Pressure Mapping System(BPD1000) to instantly visualize and quantify surface pressure distribution, to characterize initial flatness…
1. Abstract A roll-to-roll process was developed to fabricate a composite lithium metal batteriesthat exhibits near-zero volume expansion during cycling. The anode uses a sandwich architecture—an electronic-insulating top…
1. Preface Lithium-ion battery is an electric-heat-force coupling system, which has swelling problems in the actual use process. On the one hand, the SEI film is formed, and the…
Abstract This prismatic case study uses an in-situ swelling analyzer (SWE2110) to quantify swelling force and surface temperature of LiFePO4/graphite prismatic cells (40 Ah) under different initial preload conditions (60 kg…
Abstract Silicon anodes undergo approximately ~300% volume expansion during lithiation — a fundamental challenge that silicon-carbon (Si-C) composite designs partially mitigate but cannot eliminate. In a 50-cycle in-situ swelling study…
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 effect is strongest at low state…
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…
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, 1000N). The…
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 directly into the…
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. Reversible swelling arises from lattice expansion during…
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 study’s key findings,…
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 the effects of…
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