Authors: Dong-Liang Peng (Prof.), Qingshui Xie (Senior Researcher), Weibin Guo (first author), et al. Source: A Universal Strategy toward the Precise Regulation of Initial Coulombic Efficiency of Li-Rich…
1. Introduction Lithium-ion batteries power a wide array of applications, from portable electronics to electric vehicles and grid storage. A critical challenge across these fields is enhancing fast-charging…
Abstract Hard carbon electrical conductivity measurement is performed using the four-probe method in a controlled powder resistivity tester to eliminate contact resistance artifacts — critical because hard carbon’s lower…
Abstract LMFP (lithium manganese iron phosphate, LiMnxFe1-xPO4) is an olivine-structure cathode material for lithium-ion batteries that extends LiFePO₄ (LFP) by partially substituting Mn for Fe — raising the…
IEST introduce a variety of special characterization instruments for the lithium battery industry (powder resistance meter, slurry resistance meter, electrode resistance meter, cell in-situ swelling and gas production…
Abstract Among CVD silicon-carbon anode powder (vapor-deposited, PSC), milled silicon-carbon powder (SiC), and conventional artificial graphite (GR), graphite consistently shows the highest compaction density and greatest thickness rebound across 10–350 MPa applied…
1. Background Lithium-ion battery raw materials mainly include cathode materials, cathode materials, fluid collection, electrolyte and diaphragm. Positive and negative electrode materials are usually micron-grade powder materials, among…
Abstract Hard carbon vs graphite comparison across electrical conductivity, compaction density, and thickness rebound reveals a clear material division: graphite compaction density approaches 2.3 g/cm³ at high pressures with substantially higher…
Abstract The dry electrode process — a solvent-free manufacturing route that compresses active material, conductive additive, and PTFE binder directly onto a current collector without NMP coating and…
Abstract LMFP (lithium manganese iron phosphate) cathode charges to 4.1 V — 400 mV higher than LFP’s 3.7 V average discharge voltage — delivering 15–20% higher theoretical energy density…
Abstract Cathode powder battery testing using a controlled-pressure powder resistance measurement can predict a cathode material’s finished electrode resistance before slurry mixing and coating, because when the powder is compacted to…
Abstract LMFP voltage profile: Lithium manganese iron phosphate (LiMnxFe1−xPO₄) has a dual-plateau voltage profile—a characteristic that distinguishes it from LFP’s single plateau. The Mn²⁺/Mn³⁺ redox couple gives a plateau at…
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