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Cylindrical lithium cell bracket and power battery pack

A technology for power battery packs and lithium batteries, which is applied to secondary batteries, battery pack components, circuits, etc., can solve problems such as misalignment of batteries and insufficient heat dissipation of batteries, prevent chain explosions, facilitate modular design, Good anti-knock performance

Active Publication Date: 2019-05-10
浙江德创智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the deficiencies of the prior art, the present invention provides a lithium cell power battery assembly, which is firstly used to solve the problem of insufficient heat dissipation between the cells in the battery pack, and provides a controllable approximate constant temperature within a certain temperature range At the same time, it solves the problem of cell misalignment caused by the heating and expansion of the cell. At the same time, it is looking for a cheap, anti-explosion, non-combustible cell support. At the same time, it is easy to assemble and produce, modular, and compact in structure. , reduce usage and manufacturing costs

Method used

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  • Cylindrical lithium cell bracket and power battery pack
  • Cylindrical lithium cell bracket and power battery pack
  • Cylindrical lithium cell bracket and power battery pack

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Embodiment Construction

[0053] like Figure 1 to Figure 15 As shown, for existing defects, the subject of protection of the present invention is as follows:

[0054] What is developed is a lithium battery power battery pack. There are two situations in the installation process of the existing cylindrical lithium battery. One is to directly use membrane materials to bind to form a power battery pack. The existence of this power battery pack The problem is that it is easy to accumulate heat, causing temperature rise, self-expansion, liquid leakage, spontaneous combustion, self-explosion, and poor safety. To solve this problem, the existing solution is to add a frame. The existing frame has thermal expansion and contraction. The phenomenon is still obvious. For example, the solution disclosed in the Chinese patent CN204927374U, in which the support adopts injection molded parts, has the functions of insulation and positioning, and can facilitate the assembly of cylindrical lithium batteries. There is n...

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Abstract

The invention discloses a cylindrical lithium cell support and a power battery pack, wherein the cylindrical cell support includes an inorganic foam support, a first metal support protrusion, and a second metal support protrusion, and the inorganic foam support adopts an integrated inorganic foam The molded foam block structure is provided with several evenly arranged open C-shaped grooves on both sides of the inorganic foam support. The bottom of the C-shaped groove is inlaid with a first metal support protrusion. The two sides are inlaid with second metal support protrusions. The invention has good anti-explosion performance. During the self-explosion process of the electric core, the foamed bracket can undergo crushing self-destruction, absorb explosion energy, absorb impact energy, and improve the safety performance of the new energy vehicle.

Description

technical field [0001] The invention relates to the technical field of power batteries, specifically power battery packs for new energy vehicles. Background technique [0002] At present, lithium-ion power batteries are popular in my country. Lithium iron phosphate batteries refer to lithium-ion batteries that use lithium iron phosphate as the positive electrode material. [0003] There are many kinds of positive electrode materials for lithium-ion batteries, mainly including lithium cobalt oxide, lithium manganese oxide, lithium nickel oxide, ternary materials, lithium iron phosphate, etc. Among them, lithium cobaltate is currently the positive electrode material used in most lithium-ion batteries, while other positive electrode materials have not been mass-produced in the market due to various reasons. Lithium iron phosphate is also one of the lithium-ion batteries. In terms of the principle of materials, lithium iron phosphate is also an intercalation / deintercalation pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/6563H01M50/204
CPCH01M10/613H01M10/625H01M10/6563H01M50/20Y02E60/10
Inventor 杜桂菊
Owner 浙江德创智能科技有限公司
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