Battery having a circuit board attached to it and a molded section enveloping the battery and the circuit board

• US 6,929,879 B2
• Filed: 06/17/2002
• Issued: 08/16/2005
• Est. Priority Date: 06/19/2001
• Status: Expired due to Term

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Yamazaki, Masato
• Primary Examiner(s): Alejandro, Raymond
• Application Number:
  US10/174,400
• Publication Number:
  US 20030008208A1
• Time in Patent Office: 1,156 Days
• Field of Search: 429/158, 429/159, 429/160, 429/123, 429/100, 429/185, 429/7, 429/121, 429/161, 429/174, 429/180, 429/178, 264/272.21, 264/272.14, 264/273, 264/297.1, 264/249, 264/104, 136/293, 206/706
• US Class Current: 429/158
• CPC Class Codes: H01M 10/42 Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells H01M10/60 takes precedence
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 50/103 prismatic or rectangular H01M50/109, H01M50/11 take precedence
• CPC Class Codes: H01M 50/553 Terminals adapted for prismatic, pouch or rectangular cells
• CPC Class Codes: H01M 50/564 characterised by their manufacturing process
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

In order to provide a battery in which a molded section can be fixed to a battery cell, a battery comprises a battery cell, a circuit board which is attached to the battery cell, an electrode terminal which connects the battery cell and the circuit board electrically, a molded section which adheres the circuit board and the electrode terminal to the battery cell as an entire unit, adhesion strengthened areas which are formed between the electrode terminal and the battery, and electrode terminal inner surface resin sections which are formed in a part of the molded section of the adhesion strengthened area.

Claims

1. A battery comprising:

a battery cell;

a circuit board which is attached to the battery cell;

an electrode terminal which connects the battery cell and the circuit board electrically;

a molded section which adheres the circuit board and the electrode terminal to the battery cell as an entire unit;

space which serves for an adhesion strengthened area, the space formed between the electrode terminal and the battery cell by injecting a resin in a molding operation;

an electrode terminal inner surface resin section which is formed by the resin which is injected into the space as a part of the molded section, wherein

the circuit board is disposed on and attached on the battery cell,

the electrode terminal has a first adhesion section attached to a terminal of the battery cell, a second adhesion section attached to a terminal of the circuit board, a standing edge section which stands on the first adhesion section so as to be in a direction in which the standing edge section should be away from the first adhesion section, and an extracted section connecting the standing edge section and the second adhesion section,

the space is formed between the extracted section and the battery cell, and

the circuit board and the electrode terminal are embedded in the resin by performing the molding operation.

2. A battery according to claim 1, wherein

a through-hole is formed on the electrode terminal in a direction toward the battery cell;

a connecting resin section is filled and formed in the through-hole so as to connect a resin section on an outside of the electrode terminal and the electrode terminal inner surface resin section.

3. A battery according to claim 1, wherein

the electrode terminal has an extended section which extends along a side surface of the battery cell so as to have a space between the battery cell and the extended section;

the extended section is embedded in the resin by performing the molding operation.

4. A battery according to claim 2, wherein

the electrode terminal has an extended section which extends along a side surface of the battery cell so as to have a space between the battery cell and the extended section;

the extended section is embedded in the resin by performing the molding operation.

5. A battery comprising:

a battery cell;

a circuit board which is attached to the battery cell;

an electrode terminal which connects the battery cell and the circuit board electrically;

a molded section which adheres the circuit board and the electrode terminal to the battery cell as an entire unit;

an enlarged space which serves for an adhesion strengthened area, the space formed between the electrode terminal and the battery cell by injecting a resin in a molding operation; and

an electrode terminal inner surface resin section which is formed by the resin which is injected into the enlarged space as a part of the molded section,

wherein the circuit board is disposed on and attached on the battery cell,

the electrode terminal has a first adhesion section attached to a terminal of the battery cell, a second adhesion section attached to a terminal of the circuit board, and an extracted section connecting the first and second adhesion sections,

the enlarged space is formed between the extracted section and the battery cell,

the extracted section has at least one through hole through which the resin in the electrode terminal inner surface resin section is injected, and

the circuit board and the electrode terminal are embedded in the resin by performing the molding operation.

6. A battery according to claim 5, wherein

the through-hole is formed in the electrode terminal in a direction toward a battery cell.

7. A battery according to claim 5, wherein

the electrode terminal has an extended section which extends along a side surface of the battery cell so as to have a space between the battery cell and the extended section;

the extended section has at least one through hole through which the resin is injected; and

the extended section is embedded in the resin by performing the molding operation.