Abstract Powder compaction density and powder conductivity of lithium-ion battery electrode powders differ significantly depending on whether they are measured under applied pressure (pressed-state, or loading, density) or after pressure release (unloaded, relaxed-state density). At approximately 200 MPa, LFP cathode powder shows a…
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 Mn-Based Cathode Materials, Adv.Mater., 2021, DOI:10.1002 1. Abstract We report an oleic-acid…
1. Introduction With the rapid development of the lithium-ion battery industry, silicon-based anode materials have gained attention due to their high theoretical specific capacity. Silicon-based slurry typically use deionized water as a solvent, with techniques like surface modification and elemental…
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 capability, which is intrinsically linked to rate performance. This performance is governed…
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 resistance makes the two-probe method unreliable. In this study, the IEST PRCD3100 applied 10–200…
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 electrode potential from LFP’s 3.4 V to approximately 4.1 V vs. Li⁺/Li…
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 test system, model coin swelling test system, etc.) have been widely used…
Literature Appreciation: Entropy Surface Engineering Promotes The Stability Of Multi-electron Reactions Of Anions And Cations In Li-rich Layered Cathodes First Author: Jiayu Zhao Corresponding Authors: Yuefeng Su, Jinyang Dong, Lai Chen Affiliations: Beijing Institute of Technology, Chongqing Innovation Center of…
Abstract Cyclic voltammetry (CV) is an electrochemical technique in which the potential applied to a working electrode is swept linearly between two limits and then reversed in a triangular waveform, while the resulting current is recorded continuously. The output — a cyclic…
Abstract Coulombic Efficiency (CE) of a lithium-ion battery is calculated as: \(CE = Q_D(n) / Q_C(n)\), where \(Q_D(n)\) is the discharge capacity and \(Q_C(n)\) is the charge capacity in cycle \(n\). In an ideal battery with no side reactions, \(CE…
Please fill out the form below and we will contact you asap!