BATTERY

• Main Authors: HORIKOSHI YOSHIKAZU, NISHIIE DAIKI, TOKUGAWA HIDEAKI
• Format: Patent
• Language: Chinese; English
• Published: 12.11.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

This battery comprises: a winding structure electrode body including a first band-shaped electrode, a second band-shaped electrode, and a band-shaped operator provided between the first electrode and the second electrode; and an electrolyte, wherein the innermost electrode among the first electrode and the second electrode includes a current collector having a first main surface and a second main surface, a first active material layer formed on the first main surface such that a first current collector exposure part is provided at an end portion of the electrode on a winding center side, a second active material layer formed on the second main surface such that a second current collector exposure part is provided at the end portion of the electrode on the winding center side, a first insulation member, and a second insulation member. The first insulation member covers the first current collector exposure part and a boundary between the first active material layer and the first current collector exposure part,