1. Author Information and Article Abstract In 2017, the J.R. Dahn research group investigated silicon anode pouch cells using in-situ characterization methods to measure volume, stress, and thickness changes of electrodes during cycling. By combinin…
1. Intoduction Formation is a crucial step in battery manufacturing. During the formation process, the negative electrode first develops a solid electrolyte interphase (SEI), after which lithium ions traverse the SEI to intercalate into the negative…
1. Abstract The expansion behavior of silicon-carbon cells is primarily attributed to the volumetric expansion of the silicon component. Excessive accumulation of irreversible expansion during cell cycling can lead to significant capacity degradatio…
Lithium-ion battery charging and discharging cycle is a complex physicochemical reaction process, and battery cycle life is affected by a variety of factors. On the one hand, it is related to the characteristics of the battery itself, such as materi…
1. Lithium Plating Phenomenon Lithium plating is a common anomaly in lithium-ion batteries during the use of lithium-ion batteries. The direct cause of lithium plating phenomenon is that the anode material can not provide timely accommodation for fr…
1. Preface With the increasing demand for lithium-ion battery end-products, lithium-ion battery performance also needs to be constantly improved, such as the structural stability of lithium-ion batteries, safety performance and appearance of the har…
1. Preface In this paper, we adopt the in-situ swelling analysis system(SWE Series) of IEST to monitor the pressure and thickness deformation of the battery by correlating the SOC and SOH parameters of a single battery, and evaluate the compression …
1. Preface During the charge and discharge process of lithium-ion batteries, the swelling of the battery cells will occur due to the structural swelling of the positive and negative electrodes and the decomposition and gas production of the electrol…
1. Preface The expansion analysis of lithium ion batteries during charging and discharging has two manifestations: thickness and stress. Accurate measurement of expansion thickness and expansion force can help optimize the design of the battery and …
During the charging and discharging process of lithium-ion batteries, as lithium ions are continuously inserted and removed, the thickness of the battery will expand and shrink to a certain extent. Since the lithium insertion and removal process of …
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