1. Preface In this paper, IEST has tested the expansion behavior of sulfide solid-state battery during charging and discharging by using a Solid Electrolyte Test System(SEMS) and a In-Situ Silicon-Based Anode Swelling Rapid Screening System(RSS). Currently the performance of liquid batteries…
1. A Major European Investment: The Zaragoza LFP Battery Plant In a significant move for European electric vehicle production, Stellantis and Contemporary Amperex Technology Co., Limited (CATL) have officially announced a 50/50 joint venture. The partners will invest up to €4.1 billion…
1. Abstract Lithium plating (lithium dendrite formation) remains a principal failure mode in lithium-ion pouch cells, especially under fast charging, low temperature or when electrodes age. This article summarizes mechanisms of lithium plating, outlines nondestructive and destructive detection methods, and…
1. Research Background The current lithium-ion batteries have increasing range requirements, and it is crucial to develop anode materials with high specific capacity and high cycle stability. Silicon is the anode material with the highest theoretical specific capacity (4200 mAh/g),…
1. Introduction: A Practical Leap in Lithium-sulfur Battery Energy Density Australian battery innovator Li-S Energy has announced significant progress in lithium-sulfur batteries technology. The company reports that its latest full-sized pouch cells are approaching a critical benchmark of 500 Wh/kg, showcasing a…
Abstract Cell stiffness measurement in lithium-ion batteries splits into two distinct concepts: compression stiffness (also called compressive stiffness) — resistance to elastic deformation under externally applied static load — and expansion stiffness — resistance to dimensional change generated internally during lithium (de-)intercalation while cycling. Using an IEST…
1. Research Background In lithium-ion batteries, the anode material, as the main part of lithium ion diffusion and electron transport, determines the performance of the battery to a large extent. The ion diffusion characteristics of cathode have been a hot…
1. Preface The performance of lithium-ion batteries depends fundamentally on the quality of their electrodes. LiCoO2 (LCO) remains the dominant cathode material for 3C (Computer, Communication, and Consumer) electronic applications, prized for its high energy density, stable voltage plateau, and relatively simple…
1. Preface Mechanical properties are an increasingly important performance axis for lithium-ion cells. In electric vehicles, cells experience external loads during assembly, thermal expansion in operation, and — critically — impact or crush events during collisions. These mechanical events interact…
Abstract Powder compaction density (also referred to as press density in some testing standards) is the bulk density of a battery electrode powder compact after applying a defined uniaxial pressure — calculated as mass divided by the measured compact volume…
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