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…
What is DCIR? Direct Current Internal Resistance (DCIR) refers to the resistance value calculated using Ohm’s Law by applying a direct current step signal to a battery and measuring its voltage change. DCIR represents the total internal impeda…
1. What is Cyclic Voltammetry? Cyclic Voltammetry (CV) is a fundamental electrochemical characterization technique, often termed the “diagnostic report” and “performance decoder” for electrode materials. Its principle involve…
1. Background In battery R&D and quality control, charge-discharge test equipment serves as a “diagnostic center” for cells. By precisely controlling parameters such as current, voltage, and temperature, it not only measures fundamen…
Within the battery testing field, Electrochemical Impedance Spectroscopy (EIS) is an indispensable analytical technique. Functioning like an “X-ray machine,” it enables non-destructive interrogation of a cell’s internal state, prov…
1. Article Information: Title: Efficient Electrochemical Exfoliation of Halogen-Terminated MXenes Mediated by Gaseous Molecules and Their Enhancement in Wear-Resistant Tribovoltaic Devices First Authors: Qi Fan, Minghua Chen, Longyi Li Corresponding…
1. Introduction Electrochemical Impedance Spectroscopy (EIS) is a fundamental technique for investigating electrochemical interfaces and is extensively used to analyze processes within lithium-ion batteries. The method treats the battery as a “black…
1. Research Background In recent years, with the rapid expansion of the new energy vehicle market powered by lithium-ion batteries (LIBs), the number of retired LIBs is expected to increase significantly over the next 5–10 years. Therefore, lithium …
1. Background: The Critical Role of EIS Diagnostic Test in Battery Failure Analysis In investigations of energy storage station explosions or electric vehicle fires, “battery failure” consistently emerges as the root cause. Lithium-ion b…
1. Preface The Galvanostatic Intermittent Titration Technique (GITT) is a widely used electrochemical measurement method to evaluate the lithium-ion diffusion coefficient in battery electrode materials. As a core GITT battery characterization tool, …
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