Battery pack
A technology for battery packs and single cells, which is applied in the direction of batteries, battery pack components, secondary batteries, etc. It can solve the problems of inability to achieve thermal isolation of single cells and achieve good heat dissipation effects
Pending Publication Date: 2020-10-30
江苏懋略科技有限公司
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Problems solved by technology
[0008] In order to overcome the problem that the complete thermal isolation between single cells cannot be realized in the battery pack in the prior art, the present invention provides a battery pack, which has an independent thermal environment and an independent heat dissipation channel, and effectively isolates each single battery. The heat transfer between them, at the same time, realize the effective heat dissipation of each single battery
Method used
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Embodiment 1
[0038] Such as figure 1As shown, as we all know, the single battery 1 is known to the public. In this example, the battery with a square casing is mainly used as an example for illustration. For the sake of distinction, it usually includes two large sides, two small sides, a It consists of a top surface and a bottom surface 1d; when combining individual cells 1 into a battery pack, their large sides are usually arranged adjacently, so in this patent, the large side is named as the adjacent side 1a, and the small side is named as the cross side 1c, and marked accordingly for subsequent explanations. The end face 1b of the single battery 1 is generally provided with an electrode terminal 12; the electrode terminal 12 includes a first electrode terminal 121 and a second electrode terminal 122; the first electrode terminal 121 and the second electrode terminal 122 have different polarities For example, if the first electrode terminal 121 is a positive terminal, then the second el...
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In order to overcome the problem that complete thermal isolation between single batteries cannot be realized in a battery pack in the prior art, the invention provides a battery pack, which comprisesa plurality of single batteries, and the single batteries are connected through conductive connecting sheets; the battery pack further comprises a heat dissipation composite plate and a plurality of heat insulation plates; the single batteries are embedded between the heat insulation plates, and the heat insulation plates are used for thermally isolating the single batteries; and the heat dissipation composite plate is arranged on the outer side of the battery pack and is used for dissipating heat of each single battery through the heat dissipation composite plate and enabling each single battery to independently transfer heat to the outside. According to the battery pack provided by the invention, through the heat insulation plates and the heat dissipation composite plate, heat transfer among the single batteries is effectively isolated, and an independent thermal environment taking the single batteries as the center is constructed; and the heat of each single battery is independentlytransferred out, so that a good heat dissipation effect is achieved for each single battery in the battery pack.
Description
technical field [0001] The invention relates to the technical field of deep lithium ion batteries. Background technique [0002] With the increasingly prominent problems of environmental protection and energy shortage in modern society, more and more traffic, transportation and engineering vehicles have begun to adopt energy-saving and clean energy technologies, such as hybrid power, pure electric drive and fuel cell technology. Among them, secondary batteries, especially lithium-ion batteries, as the core power source, have been widely used in practice. At the same time, the requirements for the safety and life of lithium-ion batteries are getting higher and higher. Among the many issues that need to be considered, the heat dissipation and thermal isolation of the battery are two very important key points. [0003] First of all, when a lithium-ion battery is abused or has manufacturing defects inside, an internal short circuit will occur between the positive electrode and...
Claims
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IPC IPC(8): H01M10/613H01M10/625H01M10/647H01M10/6554H01M10/658H01M10/659H01M2/10
CPCH01M10/613H01M10/625H01M10/647H01M10/6554H01M10/658H01M10/659H01M2220/20Y02E60/10
Inventor 沈晞
Owner 江苏懋略科技有限公司