Thin film battery package

Patent metadata

Field	Value
Publication number	US-9806302-B2
Application number	US-201615172769-A
Country	US
Kind code	B2
Filing date	Jun 3, 2016
Priority date	Dec 9, 2010
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

A thin film battery package includes: a case having an open top side and defining a predetermined space therein, wherein the case has one side at which first and second electrodes formed of a metal material are exposed and electrically connected to the outside; a battery block on which a plurality of unit batteries are stacked so that the plurality of unit batteries is electrically connected between a first terminal and a second terminal, wherein the battery block is seated within the case so that the first and second terminals of the unit battery disposed at one end thereof are electrically connected to the first and second electrodes; and a cover sealed and coupled to the top surface of the case.

First claim

The invention claimed is:

1. A thin film battery package comprising:
an insulating case having an internal space open at a top side thereof, and including first and second electrodes formed therein;
a battery block formed by stacking a plurality of unit cells to be electrically connected to one another in the internal space, the battery block being electrically connected to the electrodes formed in the case, the battery block having a first terminal electrically connected to the first electrode and a second terminal electrically connected to the second electrode;
a metal support member placed at an upper end of the case; and
a cover welded to an upper side of the support member to seal the internal space,
wherein the first electrode and the second electrode are formed at a lower portion of the internal space of the case,
wherein the first electrode and the second electrode are integrated into a rectangular bottom piece of the insulating case, and wherein the first electrode and the second electrode penetrate the rectangular bottom piece of the insulating case.

2. The thin film battery package according to claim 1 , wherein an inner surface of the support member is collinear with an inner wall of the internal space.

3. The thin film battery package according to claim 1 , wherein the support member is stepped toward an outside of the internal space.

4. The thin film battery package according to claim 1 , wherein the support member is formed of a Kovar alloy.

5. The thin film battery package according to claim 1 , wherein the cover is formed of a ceramic body, and the support member is coupled to an outer corner of the ceramic body.

6. The thin film battery package according to claim 1 , wherein the internal space between the case and the cover is in a vacuum state or an inert gas-filled state.

7. The thin film battery package according to claim 1 , wherein the case is formed by placing the first and second electrodes in glass or ceramic powder to be electrically isolated from each other, followed by sintering the glass or ceramic powder, and the cover is formed of metal.

8. The thin film battery package according to claim 7 , wherein the cover comprises a support member formed of a Kovar alloy and provided to at least one of corners and an upper edge of the case.

9. The thin film battery package according to claim 1 , wherein the support member and the cover are joined to each other by electric or laser welding.

10. The thin film battery package according to claim 1 , wherein the cover includes a pair of unit covers facing each other and a heat shielding layer formed between the pair of unit covers.

11. The thin film battery package according to claim 1 , wherein the cover further includes an auxiliary cover extending from a lower end of the cover by a predetermined thickness to be inserted into an opening of the internal space.

12. The thin film battery package according to claim 1 , wherein the first and second electrodes have a pin or pad shape which penetrates the case and extends to the outside.

13. The thin film battery package according to claim 1 , further comprising: a filler placed between an upper surface of the battery block and a lower surface of the cover and bringing the battery block into close contact with a bottom surface of the case.

14. The thin film battery package according to claim 1 , wherein a filler is provided to the battery block, an inner bottom surface of the case and an inner side surface of the case, and prevents the battery block from being moved by external impact.

15. The thin film battery package according to claim 1 , wherein the unit cells constituting the battery block are stacked along an inner wall of the internal space and are electrically connected to one another by coating layers of paste applied to the respective terminals.

16. The thin film battery package according to claim 1 , wherein the first and second terminals of the unit cell are electrically connected to the respective first and second electrodes of the case by coating layers of paste.

17. The thin film battery package according to claim 1 , wherein the support member is attached to the upper end of the case.

18. The thin film battery package according to claim 1 , wherein the insulating case comprises the rectangular bottom piece and four side pieces attached to the rectangular bottom piece, the first electrode and the second electrode both having contact areas on an interior surface of the rectangular bottom piece of the insulating case, the contact areas being in planes parallel to planes defined by each of the plurality of unit cells.

19. The thin film battery package according to claim 1 , wherein the metal support member further comprises pieces extending downward from the upper edges of the case along corner edges of the case.

20. The thin film battery package according to claim 1 , wherein a lower side of the support member is attached to the upper end of the case and wherein the support member is narrower than sides of the case, surfaces of the support member facing the internal space being offset outwardly from surfaces of the sides of the case facing the internal space.

Assignees

• Applied Materials Inc

Inventors

• Kim Soo Ho
• Nam Sang-Cheol
• Kim Yong Yeon
• Cho Eun Hang

Classifications

• H01M10/05 Primary

  Accumulators with non-aqueous electrolyte (H01M10/39 takes precedence) · CPC title

• H01M50/105 Primary

  Pouches or flexible bags · CPC title

• H01M50/211

  adapted for pouch cells · CPC title

• H01M50/55

  on the same side of the cell · CPC title

• H01M50/296

  characterised by terminals of battery packs (terminals of batteries H01M50/543) · CPC title