Lithium power battery
A power battery and single battery technology, applied in the field of power batteries, can solve the problems of no longer having a temperature control function, and the failure risk increases the safety risk of electric vehicles, so as to prevent temperature control failure and improve safety.
Inactive Publication Date: 2017-05-31
DEYANG JIUDING ZHIYUAN INTPROP OPERATION CO LTD
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Problems solved by technology
However, whether liquid cooling or air cooling is used for temperature control, additional components such as power transmission devices and fluid circulation devices are required. Once these components fail, they will no longer have the effect of temperature control.
The risk of failure of these components increases the safety risk of electric vehicles
Method used
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] Such as figure 1 As shown, the lithium power battery of the embodiment of the present invention includes a protective case 1 , a heat dissipation device 2 and a plurality of single cells 3 . The protective shell 1 is a structure with openings at both upper and lower ends. The protective case 1 is preferably in the shape of a cuboid, of course, the protective case 1 may also be in the shape of a cylinder or other shapes. The protective shell 1 can be m...
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The invention provides a lithium power battery which comprises a protection shell, a heat dissipation device and multiple monomer batteries, wherein the protection shell is of a structure with openings in the upper and lower ends; the heat dissipation device comprises a heat conduction frame body, a heat dissipation body and paraffin; the heat conduction frame body is arranged at the lower end of the protection shell, and multiple heat dissipation fins extending towards the upper end of the protection shell are arranged on the upper surface of the heat conduction frame body; the multiple heat dissipation fins are parallel to one another; the multiple monomer batteries are arranged in the protection shell, and each monomer battery is clamped between two corresponding heat dissipation fins; the heat dissipation body is fixed in the heat conduction frame body; multiple closed and communicating heat dissipation channels are formed in the heat dissipation body; the heat dissipation channels are filled with the paraffin; the monomer batteries comprise housings and laminated battery cells; the laminated battery cells comprise positive electrode pieces, negative electrode pieces and insulating membranes; the positive electrode pieces and the negative electrode pieces are arrayed alternately in sequence, and are isolated by the insulating membranes; the positive electrode slices, the negative electrode slices and the insulating membranes are all provided with multiple through holes arrayed in a one-to-one correspondence manner. The battery can be used to prevent temperature control failure and improve the safety of an electric automobile.
Description
technical field [0001] The invention relates to the technical field of power batteries, in particular to a lithium power battery. Background technique [0002] Lithium-ion battery is a new generation of rechargeable battery developed after MH-Ni battery, because of its high working voltage, high energy density, good safety, light weight, small self-discharge, long cycle life, no memory effect, no pollution, etc. Advantages have become a key research field in the development of new energy vehicles. [0003] Lithium power batteries have potential safety hazards such as thermal runaway due to excessive temperature rise when working at high temperatures, lithium deposition and energy inability to fully develop when working at low temperatures, and uneven temperature distribution during work, resulting in reduced service life of battery modules. [0004] In the prior art, the temperature is usually controlled by liquid cooling and air cooling. The liquid cooling temperature con...
Claims
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IPC IPC(8): H01M10/613H01M10/625H01M10/6551H01M10/6555H01M10/659H01M10/0585
CPCH01M10/0585H01M2220/20H01M10/613H01M10/625H01M10/6551H01M10/6555H01M10/659Y02E60/10Y02P70/50
Inventor 陈福彦
Owner DEYANG JIUDING ZHIYUAN INTPROP OPERATION CO LTD