1. Preface During the charge and discharge process of lithium-ion batteries, the batery cell swelling will occur due to the structural swelling of the positive and negative electrodes and the decomposition and gas production of the electrolyte. Cell swelling manifests…
1. Background Lithium-ion batteries have been widely used in all aspects of life, such as mobile phones, cars or household energy storage, etc. Therefore, it is particularly important to evaluate various performances of lithium-ion batteries. We know that lithium batteries…
With the vigorous development of the new energy industry, lithium-ion batteries are gradually developing in the direction of higher energy density and longer cycle life. The theoretical gram capacity of the existing graphite anode is only 372mAh/g, which can no…
1. Preface The cathode and anode electrodes of lithium-ion batteries undergo structural expansion or contraction due to de-embedded lithium during charging and discharging. When charging a lithium-ion battery, what happens on the anode electrode side is the process of lithium…
1. Article Abstract Structural instability and stress accumulation-induced cycling degradation of silicon anodes have hindered their practical application in next-generation high-energy-density lithium-ion batteries (LIBs). Recently, M.S. Jiahao Chen and Prof. Hui Yang from Nanjing University of Technology (NUIST) developed a…
Cathode, anode, electrolyte and separator are the four main materials that make up lithium-ion batteries. During the charging process of a lithium-ion battery, lithium ions are detached from the cathode transported through the separator through the electrolyte, and then embedded…
1. Preface The multiplier performance of the battery affects the speed and life of the battery charge and discharge. How to reduce the battery resistance and improve the multiplier performance of the battery is the direction that the battery researchers…
1. Preface Model coin cell battery is a kind of battery used by lithium researchers, it is composed of a single layer of positive and negative electrode and diaphragm, but due to the binding of the positive and negative electrode…
1. Author Information and Article Abstract In 2022, Dr. Li Chuang of Tsinghua Shenzhen Research Institute developed a solid-state lithium-sulfur battery (Li-SPAN) with a salt-coated polymer electrolyte. In this structure, sulfur is fixed in the polyacrylonitrile substrate during cycling, the…
1. Preface The cell voltage and internal resistance of lithium-ion battery are two important battery parameters. Accurate and rapid characterization of these two parameters is the key to monitor the battery production stability and battery status, and improve the efficiency…
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