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Battery pack and vehicle

A battery pack and vehicle technology, applied in the field of vehicles, can solve the problems affecting the discharge performance of the whole pack and the large temperature difference of the battery cells, and achieve the effect of solving the short board effect, lowering the lower temperature limit, and providing an economical solution.

Pending Publication Date: 2021-04-02
NIO TECH ANHUI CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to solve the situation that the temperature difference of the battery core is large, and the battery core in some areas is lower than the critical temperature, which affects the discharge performance of the whole package in the extremely cold environment; it solves the short board effect and significantly improves the performance after standing at low temperature. The temperature difference between the cores is large, and it does not affect the normal use of the battery pack

Method used

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Embodiment Construction

[0029] It is easy to understand that, according to the technical solution of the present invention, those skilled in the art can propose multiple structural modes and implementation modes that can be replaced without changing the essence and spirit of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0030] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings, and they are It is a relative concept, so it may change accordingly according to its different positions and different usage states. Accordingly, these or other directional terms should not be...

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Abstract

The invention provides a battery pack and a vehicle. A battery cell group (4) is formed in the battery pack (100), the battery cell group (4) comprises a plurality of battery cells, the battery cellscomprise a first battery cell (A) and a second battery cell (B), the first battery cell (A) has better cold resistance than the second battery cell (B), and the arrangement positions of the first battery cell (A) and the second battery cell (B) depend on the heat dissipation capacity in the battery pack (100).

Description

technical field [0001] The invention belongs to the technical field of vehicles, and in particular relates to a battery pack and a vehicle equipped with the battery pack, in particular to a high-performance battery design scheme composed of batteries with different chemical systems, a battery pack with All-weather battery pack with AB cells. Background technique [0002] With the increasing market share of new energy vehicles, especially pure electric vehicles, the use scenarios of electric vehicles, especially in the cold northern environment, are becoming more and more common. As the core component of electric vehicles, batteries pose huge challenges to the driving experience, lifespan and safety of new energy vehicles in extreme temperature environments. [0003] When the car is left standing in a cold environment for a long time, the temperature distribution in the battery pack shows a certain pattern. In the area where the heat dissipation is faster, the temperature of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/615H01M10/625H01M10/658H01M10/6567H01M10/6571H01M10/6572B60K1/04
CPCH01M10/615H01M10/625H01M10/658H01M10/6572H01M10/6571H01M10/6567B60K1/04H01M10/617H01M10/651H01M50/204H01M50/233H01M50/249H01M2220/20B60L50/64B60L50/66H01M50/209H01M10/0525
Inventor 王贤鹏姜亚平王林峰方杰曾士哲
Owner NIO TECH ANHUI CO LTD
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