INSPECTION METHOD AND PROCESSING INSPECTION DEVICE FOR BATTERY ELECTRODE MATERIAL

• Main Author: TSUTSUI EMI
• Format: Patent
• Language: English; Japanese
• Published: 04.11.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a method for inspecting an electrode material before the electrode material is formed into an electrode, and a method for effectively reducing electrode defects.SOLUTION: An inspection method for a battery electrode material 5 includes a measurement step of measuring the spectral absorption amount of the electrode material 5 during kneading multiple times by near-infrared spectroscopy, a calculating step of calculating at least one kneading state index value by statistically processing a plurality of pieces of spectral absorption data measured in the measuring step, and a determination step of determining whether each index value calculated in the calculation step is within a predetermined range.SELECTED DRAWING: Figure 1 【課題】電極に形成される前の電極材料の検査方法であって、電極の不良を効果的に削減できる方法を提案する。【解決手段】電池の電極材料５の検査方法は、近赤外分光法により、混錬中の電極材料５のスペクトル吸収量を複数回測定する測定ステップと、測定ステップで測定された複数のスペクトル吸収量のデータを統計処理することにより、少なくとも１つの混錬状態の指標値を算出する算出ステップと、算出ステップで算出された各指標値が予め定められた範囲内であるかどうかを判定する判定ステップと、を含む。【選択図】図１