Film type battery and layer-built film type battery

• US 5,401,595 A
• Filed: 07/08/1993
• Issued: 03/28/1995
• Est. Priority Date: 12/06/1991
• Status: Expired due to Term

• Current Assignee: GS Yuasa International Ltd. (GS Yuasa Corporation)
• Original Assignee: Yuasa Corp (GS Yuasa Corporation)
• Inventors: Kato, Shiro, Murata, Kazuo, Kagawa, Hiroshi
• Primary Examiner(s): Willis, Jr., Prince
• Assistant Examiner(s): Nuzzolillo, M.
• Application Number:
  US08/087,682
• Time in Patent Office: 628 Days
• Field of Search: 429/152, 429/162, 429/163, 429/178
• US Class Current: 429/152
• 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 50/557 Plate-shaped terminals
• CPC Class Codes: H01M 50/581 in response to temperature
• CPC Class Codes: H01M 50/583 in response to current, e.g. fuses
• CPC Class Codes: H01M 6/12 with flat electrodes
• CPC Class Codes: H01M 6/181 with polymeric electrolytes
• CPC Class Codes: H01M 6/46 of flat cells
• CPC Class Codes: H01M 6/5038 Heating or cooling of cells or batteries

Abstract

A film type battery including a positive current collector plate, a positive active material, electrolytes, a negative active material and a negative current collector plate laminated into a layer structure, wherein the positive active material, the negative active material and the electrolytes are peripherally sealed, the positive current collector plate and the negative current collector plate are integrated by sealing agents, a portion of the positive current collector plate and a portion of the negative current collector plate are not contacted by the active material, the electrolytes or the sealing agents, a positive terminal piece is fitted to the positive current collector plate at a side of the layer structure and a negative terminal piece is fitted to the negative current collector plate at the side of the layer structure.

Claims

1. A film battery comprising a positive current collector plate, a positive active material, electrolytes, a negative active material and a negative current collector plate laminated into a layer structure,

wherein the positive active material, the negative active material and the electrolytes are peripherally sealed the positive current collector plate and the negative current collector plate are integrated by sealing agents, a portion of the positive current collector plate and a portion of the negative current collector plate are not contacted by the active material, the electrolytes or the sealing agents, a positive terminal piece is fitted to the positive current collector plate at a side of the layer structure and a negative terminal piece is fitted to the negative current collector plate at the side of the layer structure.

2. A film battery comprising a positive current collector plate, a positive active material, electrolytes, a negative active material and a negative current collector plate laminated into a layer structure,

wherein the positive active material, the negative active material and the electrolytes are peripherally sealed, the positive current collector plate and the negative current collector plate are integrated by sealing agents, a portion of the positive current collector plate and a portion of the negative current collector plate are not contacted by the active material, the electrolytes or the sealing agents, a positive terminal piece is fitted to the positive current collector plate at a side of the layer structure, a negative terminal piece is fitted to the negative current collector plate at the side of the layer structure and the positive and negative terminal pieces are laterally constricted at the middle portions thereof.

3. A film battery comprising a positive current collector plate, a positive active material, electrolytes, a negative active material and a negative current collector plate laminated into a layer structure,

wherein the positive active material, the negative active material and the electrolytes are peripherally sealed, the positive current collector plate and the negative current collector plate are integrated by sealing agents, a portion of the positive current collector plate and a portion of the negative current collector plate are not contacted by the active material, the electrolytes or the sealing agents, a positive terminal piece is fitted to the positive current collector plate at a side of the layer structure, a negative terminal piece is fitted to the negative current collector plate at the side of the layer structure and the terminal piece of the positive current collector plate and the terminal piece of the negative current collector plate are so fitted as not to be laid one upon another when they are viewed from a plan view position.

4. A film battery comprising a positive current collector plate, a positive active material, electrolytes, a negative active material and a negative current collector plate laminated into a layer structure,

wherein the positive active material, the negative active material and the electrolytes are peripherally sealed, the positive current collector plate and the negative current collector plate are integrated by sealing agents, a portion of the positive current collector plate and a portion of the negative current collector plate are not contacted by the active material, the electrolytes or the sealing agents, a positive terminal piece is fitted to the positive current collector plate at a side of the layer structure, a negative terminal piece is fitted to the negative current collector plate at the side of the layer structure and the portion of the positive current collector plate not contacted by the active material, the electrolyte or the sealing agent and the portion of the negative current collector plate not contacted by the active material, the electrolyte or the sealing agent are so installed as not to be laid one upon another when they are viewed from a plan view position.

5. A layer-built film battery, in which a positive active material, electrolytes and a negative active material are laminated into a layer structure to form a generating element, plural generating elements are laminated with positive current collector plates or negative current collector plates put between them, and the both active materials and the electrolytes are sealed at their peripheries and the both current collector plates are integrated by sealing agents;

characterized by that portions where the active materials, the electrolytes and the sealing agents do not exist are left on respective current collector plates, terminal pieces are fitted to one sides of respective current collector plates, and all of the terminal pieces for the positive current collector plates are jointed with each other and all of the terminal pieces for the negative current collector plates are jointed with each other, respectively.

7. A layer-built film battery as set forth in claim 5, in which the terminal pieces are laterally constricted at the middle portions thereof.

8. A layer-built film battery as set forth in claim 5 in which the terminal pieces of the positive current collector plates and the terminal pieces of the negative current collector plates are so fitted as not to be laid one upon another when they are viewed from a plan view position.

9. A layer-built film battery as set forth in claim 5 in which the terminal pieces are made narrow at their middle portions, rear portions are made smaller in widths than those of front portions beyond the narrowed portions, the terminal pieces of the positive current collector plates are so fitted that only front parts are laid one upon another when they are viewed from a plan view position and the terminal pieces of the negative current collector plates are also so fitted that only front parts are laid one upon another when they are viewed from the plan view position.

10. A layer-built film battery as set forth in claim 5 in which the portions of the positive current collector plates where the active materials, the electrolytes and the sealing agents do not exist and the portions of the negative current collector plates where the active materials, the electrolytes and the sealing agents do not exist, are so installed as not to be laid one upon another when they are viewed from a plan view position.

11. A layer-built film battery as set forth in claim 5 in which the terminal pieces are jointed with each other by melting zinc, tin-zinc alloy or tin-lead alloy which are previously coated on their tip ends.

6. A layer-built film battery, in which a positive active material, electrolytes and a negative active material are laminated into a layer structure to form a generating element, plural generating elements are laminated with positive current collector plates or negative current collector plates put between them, and the both active materials and the electrolytes are sealed at their peripheries and the both current collector plates are integrated by sealing agents;

characterized by that portions where the active materials, the electrolytes and the sealing agents do not exist are left on respective current collector plates, the generating elements provided with the both current collectors are laminated with frame materials forming ventilating spaces put between them on every voluntary quantity of generating element, terminal pieces are fitted to one sides of respective current collector plates, and all of the terminal pieces of the positive current collector plates are jointed with each other and all of the terminal pieces of the negative current collector plates are jointed with each other, respectively.

12. A layer-built film battery as set forth in claim 6, in which the terminal pieces are laterally constricted at the middle portions thereof.

13. A layer-built film battery as set forth in claim 6, in which the terminal pieces of the positive current collector plates and the terminal pieces of the negative current collector plates are so fitted as not to be laid one upon another when they are viewed from a plan view position.

14. A layer-built film battery as set forth in claim 6, in which the terminal pieces are made narrow at their middle portions, rear portions are made smaller in widths than those of front portions beyond the narrowed portions, the terminal pieces of the positive current collector plates are so fitted that only front parts are laid one upon another when they are viewed from a plan view position and the terminal pieces of the negative current collector plates are also so fitted that only front parts are laid one upon another when they are viewed from the plan view position.

15. A layer-built film battery as set forth in claim 6, in which the portions of the positive current collector plates where the active materials, the electrolytes and the sealing agents do not exist and the portions of the negative current collector plates where the active materials, the electrolytes and the sealing agents do not exist, are so installed as not to be laid one upon another when they are viewed from a plan view position.

16. A layer-built film battery as set forth in claim 6, in which the terminal pieces are jointed with each other by melting zinc, tin-zinc alloy or tin-lead allow which are previously coated on their tip ends.