Battery module structural integration

Patent metadata

Field	Value
Publication number	US-10749156-B2
Application number	US-201615253250-A
Country	US
Kind code	B2
Filing date	Aug 31, 2016
Priority date	Aug 1, 2016
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

A battery including supporting material is disclosed. The battery comprises a plurality of modules, each of which further comprises a plurality of battery cells that store and discharge electrical energy. To support the battery modules, a supporting material such as foam is inserted in the space between the battery modules. To support the cells within the modules, a supporting material such as foam is also inserted in between the battery cells in each of the modules.

First claim

What is claimed is:

1. A battery pack, comprising:
a battery pack enclosure;
a plurality of battery modules arranged inside the battery pack enclosure, wherein each battery module of the plurality of battery modules arranged inside the battery pack enclosure comprises:
a plurality of battery cells; and
a battery module enclosure, wherein each battery cell of the plurality of battery cells is arranged inside the battery module enclosure; and

a metal foam material disposed in spaces inside the battery pack enclosure and outside a periphery of each battery module enclosure, and wherein the metal foam material is disposed between adjacent battery module enclosures of the plurality of battery modules arranged inside the battery pack enclosure,
wherein the metal foam material contacts all outer sidewalls of the plurality of battery cells, all inner sidewalls of the plurality of battery module enclosure, all outer sidewalls of the plurality of battery module enclosures, and all inner sidewalls of the battery pack enclosure,
wherein the metal foam material occupies substantially all spaces between the plurality of battery cells such that the metal foam material is continuous along the all outer side walls of the plurality of battery cells,
wherein the metal foam material occupies substantially all spaces between the plurality of battery modules such that the metal foam material is continuous along the all outer side walls of the plurality of battery modules, and
wherein the metal foam material occupies substantially all spaces between the plurality of battery modules and the battery pack enclosure such that the metal foam material is continuous along the all inner sidewalls of the battery pack enclosure.

2. The battery pack of claim 1 , wherein:
the plurality of battery cells in each battery module enclosure are enclosed by walls of each battery module enclosure, and
the metal foam material contacts at least four of the walls of each battery module enclosure.

3. The battery pack of claim 1 , wherein each battery module is a rectangular shaped structure having six walls that enclose the plurality of battery cells.

4. The battery pack of claim 1 , wherein:
the battery modules of the plurality of battery modules are coupled together either or both of in parallel or in series.

5. The battery pack of claim 1 , wherein:
the battery cells have one of a cylindrical shape, a prismatic shape, and a pouch shape.

6. The battery pack of claim 1 , wherein:
the plurality of battery cells of each battery module are coupled together either or both of in parallel or in series.

7. An autonomous vehicle, comprising:
vehicle components capable of sensing an environment of the autonomous vehicle and navigating without human input; and
a battery pack powering at least some of the vehicle components, the battery pack comprising:
a battery pack enclosure;
a plurality of battery modules arranged inside the battery pack enclosure, wherein each battery module of the plurality of battery modules arranged inside the battery pack enclosure comprises:
a plurality of battery cells; and
a battery module enclosure, wherein each battery cell of the plurality of battery cells is arranged inside the battery module enclosure and enclosed by walls of the battery module enclosure; and
a metal foam material disposed in spaces inside the battery pack enclosure and outside a periphery of the walls of each battery module enclosure,
wherein the metal foam material is disposed between adjacent battery module enclosures of the plurality of battery modules arranged inside the battery pack enclosure,
wherein the metal foam material contacts all outer sidewalls of the plurality of battery cells, all inner sidewalls of the plurality of battery module enclosures, all outer sidewalls of the plurality of battery module enclosures, and all inner sidewalls of the battery pack enclosure,
wherein the metal foam material occupies substantially all spaces between the plurality of battery cells such that the metal foam material is continuous along the all outer side walls of the plurality of battery cells,
wherein the metal foam material occupies substantially all spaces between the plurality of battery modules such that the metal foam material is continuous along the all outer side walls of the plurality of battery modules, and
wherein the metal foam material occupies substantially all spaces between the plurality of battery modules and the battery pack enclosure such that the foam material is continuous along the all inner sidewalls of the battery pack enclosure.

8. The autonomous vehicle of claim 7 , wherein:
the metal foam material contacts sidewalls of the walls of each battery module enclosure.

9. The autonomous vehicle of claim 7 , wherein:
the battery modules of the plurality of battery modules are coupled together either or both of in parallel or in series.

10. The autonomous vehicle of claim 7 , wherein:
each battery cell of the plurality of battery cells have one of a cylindrical shape, a prismatic shape, and a pouch shape.

11. The autonomous vehicle of claim 7 , wherein:
the plurality of battery cells of each battery module are coupled together either or both of in parallel or in series.

12. A battery module occupying space defined by an energy absorbing metal foam material of a battery pack, the battery module comprising:
a battery module enclosure; and
a plurality of battery cells arranged inside a periphery of the battery module enclosure;
wherein the energy absorbing metal foam material is disposed outside of and completely surrounds the periphery of the battery module enclosure,
wherein the energy absorbing metal foam material contacts all outer sidewalls of the plurality of battery cells, all inner sidewalls of the battery module enclosure, all outer sidewalls of a plurality of battery modules, and all outer sidewalls of the battery module enclosure,
wherein the energy absorbing metal foam material occupies substantially all spaces between the plurality of battery cells such that the energy absorbing metal foam material is continuous along the all outer side walls of the plurality of battery cells,
wherein the energy absorbing metal foam material occupies substantially all spaces between the plurality of battery modules such that the energy absorbing metal foam material is continuous along the all outer side walls of the plurality of battery modules, and
wherein the energy absorbing metal foam material occupies substantially all spaces between the plurality of battery modules and a battery pack enclosure such that the energy absorbing metal foam material is continuous along thea inner sidewalls of the battery pack enclosure.

13. The battery module of claim 12 , wherein:
the battery module is coupled to at least one other battery either in parallel or in series.

14. The battery module of claim 12 , wherein:
each battery cell of the plurality of battery cells have one of a cylindrical shape, a prismatic shape, and a pouch shape.

15. The battery module of claim 12 , wherein:
the plurality of battery cells are coupled together either or both of in parallel or in series.

16. The battery pack of claim 7 , wherein each battery module is a rectangular shaped structure that encloses the plurality of battery cells.

Assignees

• Nio Usa Inc

Inventors

• Newman Austin L
• Smith Joshua

Classifications

• H01M50/24 Primary

  adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) · CPC title

• H01M50/242

  adapted for protecting batteries against vibrations, collision impact or swelling · CPC title

• B60L50/64

  Constructional details of batteries specially adapted for electric vehicles · CPC title

• H01M50/249 Primary

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title