1. Preface In this paper, we explore the correlation between electrolyte wettability and electrode tortuosity by testing the tortuosity and wetting rate of electrodes with different compaction densities to provide some new methods for electrode design and optimization. In the…
On November 2-3, 2024, the 9th National Solid State Battery Symposium was successfully held in Xiamen, hosted by the Solid State Ionics Branch of the Chinese Silicate Society, and co-sponsored by Xiamen University, Fujian Battery Technology Association, and IEST With…
Abstract All-solid-state batteries (ASSBs) promise higher intrinsic safety and the potential for much higher energy density by replacing flammable liquid electrolytes with solid ionic conductors. However, numerous materials and engineering challenges remain—chief among them ion conductivity, solid–solid interfacial contact, interfacial…
Abstract Electrolyte wetting in lithium-ion batteries refers to the ability of the liquid electrolyte to fully penetrate the pores of electrode coatings and separators, forming continuous solid–liquid interfaces that enable uniform lithium-ion transport throughout the cell. Electrolyte wettability is quantified…
1. Preface Powder materials’ resistivity and compaction density are important indicators for material monitoring in the current lithium industry, and their determination is usually done under different quantitative pressures. The process of powder materials compression is a complex physical phenomenon…
On October 24, CATL , the world’s largest EV battery manufacturer, unveiled a groundbreaking innovation in hybrid energy storage: the Freevoy Super Hybrid Battery. As the world’s first hybrid battery offering an all-electric range exceeding 400 kilometers (250 miles) and…
The Spain lithium-ion battery market is entering a new stage of rapid development. The Zaragoza plant of global automotive giant Stellantis is partnering with CATL, the world’s largest EV battery manufacturer, to expand electric vehicle production and build a large-scale…
1. Preface Among the many cathode materials, the high nickel material LiNixM1-xO2 (M = Mn, Co, Al, etc.) exhibits high energy density as well as good cycle life. However there is a decreasing trend in the market share of high…
Abstract Silicon-based anodes—including silicon-carbon (Si/C) composites and carbon-coated silicon monoxide (SiO)—offer theoretical specific capacities far exceeding graphite (372 mAh/g), but massive volume expansion (~300% for Si, ~160% for SiO during full lithiation), poor electrical conductivity, and continuous SEI growth create…
1. Background 1.1 Correlation between single particle compressive strength and material/electrode/cell performance On the microscopic scale, electrodes consist of nano- or micrometer-sized particles. Therefore, the inherent particle properties of electrode materials play a decisive role in the electrochemical performance of…
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