Evaluation of the Temperature Dependency of Tensile Strength of Electrode Materials for Lithium- Ion Batteries

User Benefits

- A thermostatic chamber makes it possible to measure the tensile strength in actual temperature environments. - Pneumatic flat grips for foil make it possible to reduce the variation in grip force and stabilizing test conditions. - By using a load cell with a wider accuracy guarantee range than a conventional one, it is possible to perform high-accuracy tests even with a small test force.

Introduction

Lithium-ion batteries play an important role in various electronic devices due to their high energy density and excellent charging efficiency. To improve battery performance, battery materials and processing methods are actively being developed. One of the evaluation methods for mechanical properties is strength measurement. The metal (current collector) used in the electrodes of lithium-ion batteries is subjected to tensile force during the manufacturing process. Evaluation of temperature dependence is required because the metal is also subjected to heat during manufacturing. This Application News introduces a workflow consisting of tensile strength evaluation of metal foil used as lithium-ion battery electrodes. The tests were performed under various temperatures to evaluate the temperature dependence of tensile strength. The apparatus used is also described.

August 5, 2025 GMT