BATTERY COVER MEMBER

• US 20110076553A1
• Filed: 09/27/2010
• Published: 03/31/2011
• Est. Priority Date: 09/29/2009
• Status: Active Grant

• Current Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Original Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Inventors: Kameda, Yoshiaki, Harayama, Takashi, Uchida, Yasunori, Ota, Tadanobu, Yamazaki, Hikohito
• Granted Patent: US 8,815,440 B2
• Time in Patent Office: Days
• US Class Current: 429/181
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 50/15 for prismatic or rectangular cells H01M50/153 takes precedence
• CPC Class Codes: H01M 50/159 Metals
• CPC Class Codes: H01M 50/176 for prismatic or rectangular cells H01M50/181 takes precedence
• CPC Class Codes: H01M 50/184 characterised by their shape or structure
• CPC Class Codes: H01M 50/188 the sealing members being arranged between the lid and terminal
• CPC Class Codes: H01M 50/193 Organic material
• CPC Class Codes: H01M 50/528 Fixed electrical connections, i.e. not intended for disconnection
• CPC Class Codes: H01M 50/55 on the same side of the cell
• CPC Class Codes: H01M 50/553 Terminals adapted for prismatic, pouch or rectangular cells
• CPC Class Codes: H01M 50/562 characterised by the material
• CPC Class Codes: H01M 50/564 characterised by their manufacturing process
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A battery cover member (10) of the present invention includes a metallic electrode terminal (40), a metallic cover member (30) having through holes (32), and an insulating resin member (50), in which the electrode terminals inserted into the through hole and the cover member are integrally bonded together by the insulating member, wherein at least a sealing area (70) of the electrode terminal that adheres to the insulating member is formed as a columnar shape or an elliptically columnar shape.

Claims

1. A battery cover member, comprising:

a metallic electrode terminal;

a metallic cover member having a through hole and an insulating resin member, in which the electrode terminal inserted into the through hole and the cover member are integrally bonded together by the insulating member, wherein at least a sealing area of the electrode terminal that adheres to the insulating member is formed as a columnar shape or an elliptically columnar shape.

2. The battery cover member according to claim 1, wherein the electrode terminal is integrally formed from one columnar rod member by plastic processing.

3. The battery cover member according to claim 2, wherein the electrode terminal has a flat-plate-shaped collector terminal connected to an electrode member, a flat-plate-shaped external terminal connected to a connect member, and a joint that is formed into a shape of a three-dimensional line of flexure and that connects the collector terminal to the external terminal.

4. The battery cover member according to claim 1, wherein the insulating member includes an adhesive modifying agent, and the electrode terminal and the cover member are surface treated by a triazine dithiol compound or a silane coupling agent.

5. The battery cover member according to claim 1, wherein the battery cover member is used for an angular sealed battery of a power source of an electric vehicle.

6. The battery cover member according to claim 3, wherein a cylindrical portion into which a protuberance of the insulating member is inserted is provided on the connect member.