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Temperature control composite clamping plate for high-expansion-rate lithium ion battery pack

A lithium-ion battery pack, high expansion rate technology, applied to battery pack components, secondary batteries, circuits, etc., can solve problems such as temperature control measures that do not involve the heating of the composite plywood structure plywood, and improve the resistance to bending deformation. and pressure stability, low weight and high tensile strength

Pending Publication Date: 2022-01-28
SHANGHAI INST OF SPACE POWER SOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] CN108054315A "square lithium-ion battery pack for space", CN205810901U "soft pack power battery module", CN10906577A "a lithium-ion battery pack for a light-weight design launch vehicle" all adopt a single splint for fixing, but do not involve composite splints Structure and temperature control measures for splint heating

Method used

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  • Temperature control composite clamping plate for high-expansion-rate lithium ion battery pack
  • Temperature control composite clamping plate for high-expansion-rate lithium ion battery pack
  • Temperature control composite clamping plate for high-expansion-rate lithium ion battery pack

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Embodiment Construction

[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 As shown, a temperature-controlled composite splint for a lithium-ion battery pack with a high expansion rate includes a splint 1, a heat conduction plate 2, a rigid foam plate 3, a heating belt 4, a leveling plate 5, a splint pull belt 6, and a temperature probe 7. The splint drawstring 6, the splint 1, the heat conduction plate 2, the heating belt 4, the rigid foam board 3 and the leveling plate 5 are sequentially bonded and formed.

[0034] The splint drawstring 6 is fixedly connected with the stay wire, drawstring or drawplate of the clamped expansion rate lithium-ion battery pack. The leveling plate 5 is connected and fixed with the cell stack in the clamped expansion rate lithium-ion battery pack.

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Abstract

The embodiment of the invention provides a temperature control composite clamping plate for a high-expansion-rate lithium ion battery pack, which is characterized by comprising a clamping plate (1), a heat conducting plate (2), a rigid foam plate (3), a heating belt (4), a leveling plate (5), a pull belt (6) and a temperature probe (7), wherein the pull belt (6), the clamping plate (1), the heat conducting plate (2), the heating belt (4), the rigid foam plate (3) and the leveling plate (5) are sequentially bonded and formed; the leveling plate (5) is fixedly connected with a cell stack in the clamped expansion rate lithium ion battery pack; the pull belt (6) is fixedly connected with a pull wire, a pull belt or a pull plate of the clamped expansion rate lithium ion battery pack; and the temperature probe (7) is sealed in a probe mounting groove in a non-stress area at the top of the rigid foam plate (3) through glue, and the temperature probe (7) is connected with the heat conducting plate (2) after being filled with glue, is not in contact with a heating area of the heating belt and is used for measuring the temperature of the heat conducting plate.

Description

technical field [0001] The invention belongs to the battery-related technical field, and relates to a temperature-controlled composite splint for a lithium-ion battery pack with a high expansion rate. Background technique [0002] With the gradual maturity of lithium ion battery technology with high specific energy such as metal lithium secondary battery and silicon carbon secondary battery, the specific energy of metal lithium secondary battery is as high as 450Wh / kg or more, and even higher than 530Wh / kg . However, metal lithium secondary batteries lack space for lithium ion intercalation compared with traditional graphite anode materials, so there will be significant volume expansion during charging, especially for metal lithium batteries with square flexible packaging, whose thickness expansion is generally as high as 8%. When the metal lithium secondary battery expands, it will cause a huge deformation of the module structural parts, generate a huge external extrusion ...

Claims

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Application Information

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IPC IPC(8): H01M50/242H01M50/244H01M50/264H01M10/0525H01M50/209H01M10/48H01M10/615H01M10/6554
CPCH01M50/242H01M50/244H01M50/264H01M10/0525H01M50/209H01M10/486H01M10/615H01M10/6554Y02E60/10
Inventor 沈川杰谢朝香朱兼侯晓升张晓霞李克锋吕士银王冠郑奕
Owner SHANGHAI INST OF SPACE POWER SOURCES
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