Granted Patent B2

US 12,374,761 · App. 18/116,907 · Granted Jul 29, 2025

Inventors: Ryota Tajima (Isehara, JP); Kazuhei Narita (Atsugi, JP); Kensuke Yoshizumi (Isehara, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

H01M50/531H01M50/116H01M50/178H01M50/209H01M50/244H01M50/247H01M50/50H01M50/543H01M50/548H01M50/55H01M2220/30Y02E60/10

Abstract

Claims (64)

1. A method for manufacturing a battery module comprising the steps of:

forming a first portion of a first exterior body by molding a first material using a first mold, the first portion having a depression;

preparing a battery including a second exterior body and a pair of tabs;

inserting the battery into the depression so that part of the pair of tabs projects outside an opening edge of the depression;

providing the first portion into which the battery is inserted in a second mold; and

forming a second portion of the first exterior body by molding a second material using the second mold, thereby forming the first exterior body in which the first portion and the second portion are bonded to each other in the opening edge,

wherein the first portion has a shape in which a vicinity of the opening edge is cut out obliquely,

wherein the second portion seals the opening edge of the depression,

wherein the second portion is in contact with an end portion of the second exterior body and the part of the pair of tabs is exposed at the outside of the second portion,

wherein the first material and the second material are rubber, and

wherein the second exterior body comprises a portion not bonded to the first portion.

2. The method for manufacturing a battery module according to claim 1 , wherein the battery has flexibility.

3. The method for manufacturing a battery module according to claim 1 , wherein the first material is the same as the second material.

4. The method for manufacturing a battery module according to claim 1 ,

wherein a millable material is used as the first material and the second material, and

wherein the first portion and the second portion are formed by one of direct pressure molding, direct pressure injection molding, and injection molding.

5. The method for manufacturing a battery module according to claim 1 ,

wherein one of a liquid material and a paste-form material is used as the first material and the second material, and

wherein the first portion and the second portion are formed by injection molding.

6. The method for manufacturing a battery module according to claim 1 , wherein the battery is provided so that at least parts of the pair of tabs overlap with the opening edge and the other parts of the pair of tabs project outside the opening edge.

7. A method for manufacturing a battery module comprising the steps of:

forming a first portion of a first exterior body by molding a first material using a first mold, the first portion having a depression;

preparing a battery including a second exterior body and a pair of electrodes;

inserting the battery into the depression so that part of the pair of electrodes projects outside an opening edge of the depression;

providing the first portion into which the battery is inserted in a second mold; and

forming a second portion of the first exterior body by molding a second material using the second mold, thereby forming the first exterior body in which the first portion and the second portion are bonded to each other in the opening edge,

wherein the first portion has a shape in which a vicinity of the opening edge is cut out obliquely,

wherein the second portion seals the opening edge of the depression,

wherein the second portion is in contact with an end portion of the second exterior body and the part of the pair of electrodes is exposed at the outside of the second portion,

wherein the first exterior body comprises a first plate and a second plate,

wherein the battery is sandwiched by the first plate and the second plate,

wherein the first material and the second material are rubber, and

wherein the second exterior body comprises a portion not bonded to the first portion.

8. The method for manufacturing a battery module according to claim 7 , wherein the first plate and the second plate have different lengths.

9. The method for manufacturing a battery module according to claim 7 , wherein the first plate and the second plate are bonded to each other by a bonding portion.

10. The method for manufacturing a battery module according to claim 9 , wherein the battery, the first plate, and the second plate are fixed to each other only in a vicinity of the bonding portion.

11. The method for manufacturing a battery module according to claim 7 , wherein the battery has flexibility.

12. The method for manufacturing a battery module according to claim 7 , wherein the first material is the same as the second material.

13. The method for manufacturing a battery module according to claim 7 ,

wherein a millable material is used as the first material and the second material, and

wherein the first portion and the second portion are formed by one of direct pressure molding, direct pressure injection molding, and injection molding.

14. The method for manufacturing a battery module according to claim 7 ,

wherein one of a liquid material and a paste-form material is used as the first material and the second material, and

wherein the first portion and the second portion are formed by injection molding.

15. The method for manufacturing a battery module according to claim 7 , wherein the battery is provided so that at least parts of the pair of tabs overlap with the opening edge and the other parts of the pair of tabs project outside the opening edge.

16. A method for manufacturing a module comprising the steps of:

forming a first portion of a first exterior body by molding a first material using a first mold, the first portion having a depression;

preparing an electronic component including a second exterior body and at least one electrode;

inserting the electronic component into the depression so that part of the electrode projects outside an opening edge of the depression;

providing the first portion into which the electronic component is inserted in a second mold; and

forming a second portion of the first exterior body by molding a second material using the second mold, thereby forming the first exterior body in which the first portion and the second portion are bonded to each other in the opening edge,

wherein the first portion has a shape in which a vicinity of the opening edge is cut out obliquely,

wherein the second portion seals the opening edge of the depression,

wherein the second portion is in contact with an end portion of the second exterior body and the part of the electrode is exposed at the outside of the second portion,

wherein the first material and the second material are rubber, and

wherein the second exterior body comprises a portion not bonded to the first portion.

17. The method for manufacturing a module according to claim 16 , wherein the electronic component has flexibility.

18. The method for manufacturing a module according to claim 16 , wherein the first material is the same as the second material.

19. The method for manufacturing a module according to claim 16 ,

wherein a millable material is used as the first material and the second material, and

wherein the first portion and the second portion are formed by one of direct pressure molding, direct pressure injection molding, and injection molding.

20. The method for manufacturing a module according to claim 16 ,

wherein one of a liquid material and a paste-form material is used as the first material and the second material, and

wherein the first portion and the second portion are formed by injection molding.

Priority Claims (1)

Continuity (3)

References Cited (66)