1. Preface With the continuous improvement of the endurance requirements of new energy vehicles, battery anode materials are also developing in the direction of high energy density. Although the traditional graphite anode material has mature technology and low cost, its…
1. Preface In recent years, lithium-ion batteries have been widely used in consumer electronics, electric vehicles, energy storage power stations and other fields due to their high specific capacity and safety. As people’s demand for battery capacity is getting higher…
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 constant pressure or monitor the change of pressure under a limited constant…
1. Preface In this paper, the in-situ swelling analyzer (SWE) is used to test the thickness of NCM cell(523/graphite cells): theoretical capacity 2400mAh under different constant pressure conditions (50N/500N/1000N) to compare and analyze the swelling behavior of the NCM cells.…
1. Preface With the continuous development of new energy vehicles, people have put forward higher requirements for the vehicle’s cruising range and service life. How to arrange more batteries in a limited space, engineers follow the idea of “removing modules…
In this paper, an IEST in-situ volume monitor (GVM) is used to carry out in-situ overcharge volume test under different charging rate conditions (0.5C) on lithium cobalt oxide/graphite batteries (theoretical capacity 1000mAh), and compare and analyze the cell gas production…
1. Preface Because of its high energy density, NCM materials have become the first choice of cathode materials for most power batteries. The ratio of Ni/Co/Mn has an important influence on the performance of the battery 1-2. As shown in…
1. Preface This paper uses an in-situ volume monitor to analyze the volume changes of two different electrolyte systems of NCM811 system cells during high temperature cycling, and provides a method for R&D to accurately evaluate electrolyte performance. As the…
1. Preface For lithium-ion batteries encapsulated with aluminum-plastic film or steel shell, due to the limitation of external space, the volume swelling during charging and discharging will cause different degrees of stress inside the battery, which will affect the battery…
1. Author Information and Article Abstract CP Aiken (first author) and JR Dahn (corresponding author) of Dalhousie University in Canada introduced a device for in-situ gas production of lithium-ion pouch cells batteries to analyze the formation and initial charging of…
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