1. Abstract With the rapid development of electric vehicles, grid-scale energy storage and premium consumer electronics, the demand for accurate and stable battery characterization has risen sharply. High-precision battery cycler systems are indispensable tools for battery R&D, quality validation and…
1. Background As one of the most important electrochemical energy storage devices today, the performance enhancement of lithium-ion batteries has always attracted significant attention. Traditional research often focuses on the improvement of active materials, while overlooking the importance of the…
1. Introduction Recently, the team of Academician Zhao Tianshou, Han Meisheng, and Zeng Lin from Southern University of Science and Technology (SUSTech) published a breakthrough study on sodium-ion battery cathode materials in the top-tier international journal Energy & Environmental Science (EES), titled “Integrated…
Abstract In-situ EIS and ex-situ EIS are the two primary approaches for battery impedance characterization, but their data reliability differs substantially. This comparative study on 100 mAh pouch cells demonstrates that in-situ EIS achieves a coefficient of variation (cov) of ≤1% for both Rs and…
Abstract Crushing strength is the compressive load an individual electrode particle can withstand before mechanical fracture, measured via single-particle compression testing and expressed relative to particle size per methods such as Chinese National Standard GB/T 43091-2023. For artificial graphite (also called synthetic graphite) versus natural…
1. Overview As the core of the modern energy system, batteries are widely used in various critical fields such as consumer electronics, power batteries, and energy storage systems. A reliable battery test system is not only the foundation of R&D…
Abstract DCIR, short for Direct Current Internal Resistance, is the total internal resistance of a lithium-ion battery, calculated from Ohm’s Law based on the voltage response to an applied current pulse: $R = \Delta V / \Delta I$. A DCIR…
Abstract Electrode tortuosity quantifies the geometric complexity of ion transport pathways within a battery electrode’s pore network—defined as the ratio of the actual lithium-ion migration distance through the pores to the straight-line electrode thickness. Higher tortuosity means longer, more convoluted pathways…
Abstract Separator ionic conductivity increases as temperature rises, primarily because higher temperature lowers electrolyte viscosity and accelerates lithium-ion migration through the ionic separator’s porous structure. Testing on Separator A using the IEST EIC2400M multi-channel ionic conductivity test system shows conductivity…
Abstract BYD Blade Battery 2.0 is the second-generation cell platform from BYD, officially released on March 6, 2026, delivering an energy density of 190–210 Wh/kg, ultra-fast charging performance, and over 1,000 km of real-world driving range in flagship vehicles. According to…
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