NONAQUEOUS ELECTROLYTE POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME

• Main Authors: HOSOE KENTO, MATSUBARA SHINSUKE
• Format: Patent
• Language: English; Japanese
• Published: 30.08.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a method for manufacturing a nonaqueous electrolyte power storage device, which can achieve a low resistance.SOLUTION: A method for manufacturing a nonaqueous electrolyte power storage device comprises the steps of: preparing a mixture paste arranged by mixing active material particles 98, a binder, and a carboxymethylcellulose 97 into an aqueous solvent; coating a current collector 92 with the mixture paste; and drying the mixture paste. With the percentage of a solid component in the mixture paste, the percentage of the carboxymethylcellulose of 40(mol/C6) or less in the degree of etherification is 0.5 wt% or larger.SELECTED DRAWING: Figure 7 【課題】低抵抗化が図られた非水電解質蓄電デバイスの製造方法の提供。【解決手段】活物質粒子９８と、バインダと、カルボキシメチルセルロース９７とを水系溶媒に混合した合剤ペーストを用意する工程と、合剤ペーストを集電体９２に塗布する工程と、合剤ペーストを乾燥させる工程とを含んでいる。ここで、合剤ペースト中の固形分率において、エーテル化度４０（ｍｏｌ／Ｃ６）以下のカルボキシメチルセルロースの割合が０．５ｗｔ％以上である非水電解液蓄電デバイスの製造方法。【選択図】図７