Hollow rubber composite pad for lithium ion battery pack

A technology of lithium-ion battery packs and composite pads, which is applied in battery pack parts, rubber layered products, applications, etc., can solve the problems of battery pack assembly mismatch, hollow rubber pad deformation, low friction coefficient, etc., and achieve high friction force, improve the seismic capacity, the effect of large economic benefits

Pending Publication Date: 2021-05-25
SHANGHAI INST OF SPACE POWER SOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the single battery is assembled, considering the requirement of high strength, the rubber pad and the single battery are usually coated with silicone rubber for bonding. However, when the silicone rubber is in a flowing state before curing, the friction coefficient of the bonding interface is abnormally biased. low, leading to a sudden drop in friction, the outward driving force F3 caused by the arc of the single battery is greater than the friction force f, under this mechanism, the hollow rubber pad is deformed, causing both sides of the hollow rubber pad to protrude beyond the shape of the single battery network, resulting in a subsequent battery pack assembly mismatch, resulting in quality problems

Method used

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  • Hollow rubber composite pad for lithium ion battery pack
  • Hollow rubber composite pad for lithium ion battery pack
  • Hollow rubber composite pad for lithium ion battery pack

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Embodiment Construction

[0026] 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.

[0027] The invention provides a hollow rubber composite pad for a lithium-ion battery pack, which is characterized in that it includes: a polyimide film and a hollow rubber plate, wherein the polyimide film is two pieces, which are respectively pasted on the Both sides of the hollow rubber plate form the hollow rubber composite pad; the hollow rubber composite pad is placed between the adjacent surfaces of two adjacent single cells of the application battery pack.

[0028] According to an embodiment of the present invention, two pieces of polyimide membranes are respectively pasted on both sides of the hollow rubber plate by self-adhesive.

[0029] According to an embodiment of the present invention, the hollow rubber sheet is one...

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Abstract

The embodiment of the invention provides a hollow rubber composite pad for a lithium ion battery pack, which is characterized in that the hollow rubber composite pad comprises two polyimide films and a hollow rubber plate, the polyimide films are respectively adhered to two sides of the hollow rubber plate to form the hollow rubber composite pad; and the hollow rubber composite pad is arranged between adjacent surfaces of two adjacent single batteries of the applied battery pack.

Description

technical field [0001] A hollow rubber composite mat for a lithium-ion battery pack, in particular a structurally stable hollow rubber composite mat for a square lithium-ion battery pack in which the lithium-ion battery monomer is a metal casing. Background technique [0002] The hollow rubber pad has the characteristics of high friction, compressibility and light weight, which can overcome the deformation of the single battery during charging and discharging. However, a single hollow rubber pad also has certain defects in practical applications, which limits its mass application. When the single battery is in the process of assembly, a mutual extrusion pressure F1 is generated between the single cells, and then, the pressure generated by the single battery on the rubber pad in the middle is F2, because the contact surface between the single battery and the rubber pad is actually It has a certain radian, forming an outward driving force F3. When the single battery is assem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B25/08B32B25/14B32B25/16B32B25/20B32B27/28B32B7/12H01M50/242
CPCB32B25/08B32B25/14B32B25/16B32B25/20B32B27/281B32B7/12B32B2457/10
Inventor 沈川杰李克锋朱兼张懋慧王舒丹吕士银杨志云
Owner SHANGHAI INST OF SPACE POWER SOURCES
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