When the cell undergoes de-embedded lithium phase transition during the charging and discharging process, it will cause thickness swelling and volume swelling. This article uses the same test process to perform expansion tests on LFP/graphite battery cells. Since the LFP…
1. Author Information and Article Abstract In 2020, Central South University and CATL jointly studied the cyclic swelling force changes of the ternary system power battery under different design and assembly process conditions, and further combined with 3D simulation to…
Due to its safety and stability, LFP batteries are increasingly popular in the new energy storage and electric vehicle industries. Currently commonly used LFP system batteries, the cathode material is olivine structure of LFP material, the anode material is graphite…
1. Author Information and Article Abstract In 2014, Bernhard Bitzer et al. published a method for monitoring the lithium plating of battery cells by in-situ detection of battery swelling thickness changes. When the battery is charged at low temperature or…
1. Preface In this paper, the resistance difference of carbon coated aluminum foils with different formulations and different coating thicknesses is compared by using the electrode resistance test method to analyze the uniformity of their undercoated electrodes. As a carrier…
Literature Appreciation: Pressure Effect on Mechanical and Electrochemical Properties of Lithium Cobalt Oxide Powder Materials 1. Article Overview The design, manufacture and handling of active substance powders have a huge impact on battery performance. The consistency of the active substance…
1. Preface The electrode resistance represents the electronic conductivity of the electrode, and this parameter is closely related to the compaction density, porosity, and formulation of the electrode. When the electrode is prepared with different roll pressure, the surface roughness…
Summary Bankruptcy filing by a subsidiary: Northvolt Ett Expansion AB, which was responsible for the “gigafactory” expansion project in northern Sweden, filed for bankruptcy due to project cancellation. The company’s liabilities are estimated to be approximately SEK 2-3 billion (USD…
1. Preface Electrode sheet as an important link in the battery production, the performance of the directly affect the stability of the process and the performance and safety of the cell, so the evaluation of electrode sheet performance, including Electrode…
Literature appreciation: Influence of High Intensive Dry Mixing and Calendaring on Relative Electrode Resistivity Determined Via An Advanced Two Point Approach 1. Author Information and Article Abstract Bastian Georg Westphal from the Technical University of Braunschweig, Germany, introduced a fast…
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