Battery module having all-solid-state battery and cartridge

Patent metadata

Field	Value
Publication number	US-10361470-B2
Application number	US-201615548372-A
Country	US
Kind code	B2
Filing date	Feb 4, 2016
Priority date	May 14, 2015
Publication date	Jul 23, 2019
Grant date	Jul 23, 2019

Abstract

A cartridge having a novel structure for guaranteeing stable operational performance of a secondary battery that operates at a high temperature or has improved performance at a high temperature, and a battery module including the cartridge is provided. The battery module includes at least one secondary battery; and a cartridge receiving at least a portion of the secondary battery and configured to be stacked in at least one direction, the cartridge including a heat insulating member.

First claim

What is claimed is:

1. A battery module comprising:
at least one secondary battery; and
a cartridge receiving at least a portion of the secondary battery and configured to be stacked in at least one direction, the cartridge comprising a heat insulating member,
wherein the secondary battery is an all-solid-state battery,
wherein the cartridge comprises:
a rest part configured to receive a lower portion of the secondary battery; and
a lateral part standing on an edge of the rest part, and

wherein the heat insulating member is arranged between a side of the secondary battery and the lateral part to trap heat around the secondary battery whereby a temperature of the secondary battery is increased relative to a room temperature.

2. The battery module of claim 1 , wherein the heat insulating member is provided on the lateral part.

3. The battery module of claim 2 , wherein the at least one secondary battery includes a plurality of secondary batteries,
wherein the cartridge is provided in plurality and corresponding to the number of secondary batteries and the secondary batteries and cartridges are stacked in the at least one direction to provide a cartridge stack, and
wherein the battery module further comprises a lower cover comprising a heat insulating material in at least a portion thereof and configured to be coupled to a lower portion of a lowermost cartridge in the cartridge stack.

4. The battery module of claim 2 , wherein the heat insulating member is further provided on the rest part.

5. The battery module of claim 1 , wherein the at least one secondary battery includes a plurality of secondary batteries,
wherein the cartridge is provided in plurality and corresponding to the number of secondary batteries and the secondary batteries and cartridges are stacked in the at least one direction to provide a cartridge stack, and
wherein the battery module further comprises an upper cover comprising a heat insulating material in at least a portion thereof and configured to be coupled to an upper portion of an uppermost cartridge in the cartridge stack.

6. The battery module of claim 1 , wherein the at least one secondary battery includes a plurality of secondary batteries,
wherein the cartridge is provided in plurality and corresponding to the number of secondary batteries and the secondary batteries and cartridges are stacked in the at least one direction to provide a cartridge stack, and
wherein a lower cartridge of the cartridge of the cartridge stack further comprises a lower cover part configured to surround at least a portion of a lateral outer surface of the lower cartridge in the cartridge stack.

7. The battery module of claim 1 , wherein the at least one secondary battery includes a plurality of secondary batteries,
wherein the cartridge accommodates the plurality of secondary batteries arranged in a horizontal direction and comprises a partition wall part vertically standing between adjacent secondary batteries arranged in the horizontal direction, and
the partition wall part comprises a heat insulating member.

8. The battery module of claim 1 , wherein at least a portion of the heat insulating member is detachably attached to the cartridge.

9. The battery module of claim 1 , wherein the cartridge comprises only the heat insulating member.

10. The battery module of claim 1 , wherein the heat insulating member comprises at least one of glass wool, expanded polystyrene (EPS), extruded polystyrene (XPS), polyurethane foam, water-based flexible foam, urea foam, vacuum insulation panels, polyvinyl chloride (PVC), and a thermal reflective insulation material.

11. The battery module of claim 1 , wherein the cartridge further comprises a heating member configured to supply heat to a side of the secondary battery.

12. The battery module of claim 11 , further comprising:
a temperature measuring unit configured to measure surrounding temperatures; and
a control unit configured to control operation of the heating member according to temperatures measured by the temperature measuring unit.

13. The battery module of claim 1 , wherein the battery module comprises at least two types of secondary batteries having different ionic conductivities at room temperature.

14. The battery module of claim 1 , wherein the cartridge further comprises a heat conduction member extending from an upper end portion to a lower end portion of the cartridge.

15. The battery module of claim 14 , wherein the at least one secondary battery includes a plurality of secondary batteries,
wherein the cartridge is provided in plurality and corresponding to the number of secondary batteries and the secondary batteries and cartridges are stacked in the at least one direction to provide a cartridge stack, and
wherein, when in the cartridge stack, the heat conduction member of an upper cartridge in the cartridge stack and the heat conduction member of a lower cartridge in the cartridge stack contact each other.

16. An automobile comprising the battery module of claim 1 .

17. A power storage device comprising the battery module of claim 1 .

Assignees

• Lg Chemical Ltd

Inventors

• Kwon Ki-Young
• Sung Da-Young
• Yi Young-Jin
• Jang Min-Chul
• Jung Byoung-Hyo
• Im Ye-Hoon
• Yang Doo-Kyung

Classifications

• H01M10/615 Primary

  Heating or keeping warm · CPC title

• H01M2220/10

  Batteries in stationary systems, e.g. emergency power source in plant · CPC title

• H01M2300/0065

  Solid electrolytes · CPC title

• H01M10/63

  Control systems (charging or discharging in response to temperature H01M10/44 {, H01M10/443}; measurement of temperature H01M10/48 {, H01M10/486}) · CPC title

• H01M2300/0068

  inorganic · CPC title