Complete immersion type liquid cooling security battery pack
A battery pack and liquid cooling technology, which is applied to secondary batteries, battery pack components, circuits, etc., can solve problems such as battery performance impact, safety accidents, and high battery pack temperature, and achieve the effects of improving temperature uniformity and saving space
Inactive Publication Date: 2017-06-09
SUZHOU ANKAO ENERGY
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Problems solved by technology
[0004] The purpose of this application is to propose a full-immersion liquid-cooled safety battery in order to solve the problem that the temperature of the battery pack in the existing battery pack is too high and the internal temperature uniformity of the battery pack is poor, which affects the performance of the battery and even causes a safety accident. Bag
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[0022] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these examples are used to illustrate the present application and not limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not indicated are usually the conditions in routine experiments.
[0023] figure 1 A specific embodiment of the fully immersed liquid-cooled safety battery pack of the present application is shown, which is the same as the traditional battery pack in that it includes a battery box and a battery pack housed in the battery box, wherein the battery box is opened by the upper part. The box body 1 with the opening and the box cover 2 sealed at the opening of the box body, the battery box fully meets the sealing requirements of IP67. The battery pack is a high-capacity lithium batt...
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Abstract
The invention discloses a complete immersion type liquid cooling security battery pack which comprises a battery tank and a battery pack, wherein the battery tank consists of a tank body and a tank cover; the battery pack is accommodated inside the battery tank; the battery pack comprises a plurality of single batteries in series-parallel connection; a liquid cold / heat exchange device which is positioned on the inner side of the tank cover is arranged on the tank cover; a liquid substance in which the single batteries are immersed is arranged inside the tank body; the liquid substance is a heat-absorption phase-change material of which the melting point is within 5-45 DEG C. By adopting the complete immersion type liquid cooling security battery pack, on one hand, the battery pack is in an appropriate use environment all the time, and a great deal of heat generated in the battery pack operation process can be carried away in time; on the other hand, the temperature of the single batteries inside the battery pack can be kept uniformly, so that battery pressure differences caused by too large temperature differences can be avoided, the electrochemical properties of the batteries can be effectively improved, the service life of a single battery can be effectively prolonged, in addition, potential thermal runaway caused by partial overheat can be avoided.
Description
technical field [0001] The present application relates to the field of battery technology, in particular to a fully immersed liquid-cooled safety battery pack. Background technique [0002] Encouraged by the national sustainable development policy and new energy vehicle incentive policies, electric vehicles have developed rapidly, and new energy electric vehicles that are energy-saving and environmentally friendly are increasingly favored by consumers. The power of an electric vehicle is generated by providing power to the motor through the battery pack, but the battery will generate heat when used for a long time, especially when used outdoors at high temperatures, and may even cause safety accidents such as burning. The heating of the battery has always hindered the introduction of pure electric vehicles into the market. A big problem in operation, effective cooling can improve the working environment and performance of power batteries, thereby ensuring the driving safety ...
Claims
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IPC IPC(8): H01M2/10H01M10/617H01M10/625H01M10/6567H01M50/20
CPCH01M10/617H01M10/625H01M10/6567H01M50/20Y02E60/10
Inventor 魏辉顾江娜龚晓冬许祎凡
Owner SUZHOU ANKAO ENERGY