Nonaqueous electrolyte secondary battery

• Main Authors: NISHIDE DAISUKE, FUJITA HIDEAKI, MIYACHI YOSHIKAZU, TANAHASHI YUTA
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A nonaqueous electrolyte secondary battery (100) includes an electrode body (50) including a positive electrode plate (10) including a positive electrode core (11) and a positive electrode active material layer (12), a separator (30), and a negative electrode plate (20) including a negative electrode core (21) and a negative electrode active material layer (22), and an electrolyte solution containing a Li salt, a solvent, and an additive. The ratio A/B of the positive electrode active material layer (12) and/or the negative electrode active material layer (22) is 1.4-2.6. 本公开涉及一种非水电解质二次电池(100)，包含电极体(50)和电解液，电极体(50)具备正极板(10)、间隔件(30)和负极板(20)，电解液含有Li盐、溶剂和添加剂，正极板(10)具备正极芯体(11)和正极活性物质层(12)，负极板(20)具备负极芯体(21)和负极活性物质层(22)，正极活性物质层(12)和负极活性物质层(22)中的至少任一者的比A/B为1.4～2.6。