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…
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…
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…
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…
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…
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…
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…
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…
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.…
In this paper, an in-situ swelling analyzer (SWE) is used to test the swelling thickness/temperature/internal resistance of three different cathode material systems (LCO/Graphite, NCM/Graphite, LFP/Graphite) under overcharge conditions, and compare…
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