1. Introduction In the rapidly evolving new energy sector, continuous development of novel materials necessitates comprehensive testing. Beyond routine physicochemical characterization (particle size, BET, XRD, SEM, etc.), preliminary electrochemical performance evaluation is critical for assessing materials and manufacturing processes. As…
1. Abstract Oxide solid electrolytes are a leading candidate for high-energy, high-safety next-generation batteries. This article presents IEST’s practical solutions for rapid, reliable oxide solid electrolyte characterization — from pellet fabrication and high-pressure densification to high-frequency impedance measurement and semi-solid…
1. Background With the continuous development of science and technology, research in the field of materials science is becoming increasingly in-depth. Among them, hollow sphere materials have shown broad application prospects in many fields due to their unique structure and…
Abstract Battery failure analysis using EIS (electrochemical impedance spectroscopy) testing is a non-destructive method that identifies lithium-ion battery degradation modes — including SEI layer thickening, charge transfer resistance increase, lithium dendrite growth, and electrolyte decomposition — by measuring impedance across a…
Abstract Separator ionic conductivity (symbol \(\sigma\), unit S/cm) quantifies how readily Li\(^+\) ions transport through a battery separator — a key determinant of cell power and rate capability. The ionic conductivity calculation formula is \(\sigma = d / (R \times…
1. Background Polystyrene microspheres (PS microspheres) represent a significant research focus in polymer science due to their unique physicochemical properties, which make them highly suitable for a variety of applications in biochemistry, sensing, catalysis, and more. These microspheres are synthesized…
Journal: Energy Materials Organization: School of Materials, Xiamen University, IEST Instrument. Authors: Jie Zhu, Yunfan Wu, Hongyi Zhang, Xujia Xie, Yong Yang, Hongyu Peng, Xiaochun Liang, Qiongqiong Qi, Weibin Lin, Dongliang Peng, Laisen Wang*, Jie Lin*. Correspondence Authors: WANG Laisen,…
Abstract Li-rich Mn-based cathodes deliver exceptional specific capacity because they combine cationic and anionic (lattice oxygen) redox activity. However, lattice-oxygen participation at high voltages generates unstable electronic holes and reactive O²⁻ species that ultimately form O–O dimers and release O₂ —…
Authors: Haoyu Wang (First Author), Jinyang Dong, Yuefeng Su, Lai Chen (Corresponding Authors) Affiliation: Beijing Institute of Technology Equipment Used: IEST PRCD3100 Powder Resistivity & Compaction Density Tester, SPFT-2000 Single Particle Force Testing System 1. Abstract We report a rapid, scalable…
On December 24th, CATL officially launched the CATL Bedrock Chassis, the world’s first ultra-safe skateboard chassis. With its outstanding performance of withstanding 120 km/h frontal impact without catching fire or exploding, CATL’s Bedrock Chassis sets a new standard for intelligent chassis safety,…
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