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A battery, battery module, battery pack and electric vehicle

A technology of battery modules and battery packs, which is applied in the direction of electric vehicles, battery pack components, batteries, etc., can solve the problems that lithium-ion batteries cannot be lightweight, low-cost, high-energy density, and have many structural parts, and achieve favorable Effects of lightweight design, weight reduction, and enhanced ability to resist external forces

Active Publication Date: 2022-08-09
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although some battery pack structures in the prior art can achieve the effect of combination and series connection, they cannot meet the requirements of lightweight, low cost, and high energy density for lithium-ion batteries due to the large number of structural parts used.

Method used

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  • A battery, battery module, battery pack and electric vehicle
  • A battery, battery module, battery pack and electric vehicle
  • A battery, battery module, battery pack and electric vehicle

Examples

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Embodiment Construction

[0043] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.

[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0045] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

[0046] In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting. Accordingly, other instances of the exemplary embodiment may hav...

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PUM

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Abstract

The invention discloses a battery, a battery module, a battery pack and an electric vehicle. The battery includes a casing and at least two pole core groups, and the casing has a accommodating cavity; the at least two pole core groups are arranged in In the accommodating cavity, the pole core groups are connected in series, and the pole core group includes at least one pole core; the battery further includes a separator, and the separator is arranged between two adjacent pole core groups, so The spacer includes a first spacer and a second spacer, and a gap is set between the first spacer and the second spacer. In the battery provided by the present invention, the first separator and the second separator with a gap are arranged between the pole core groups, which can reduce the weight of the battery while isolating the pole core groups, and is easy to install.

Description

technical field [0001] The present invention relates to the technical field of batteries, and more particularly, to a battery, a battery module, a battery pack and an electric vehicle. Background technique [0002] As a new type of non-polluting secondary battery, lithium-ion battery has been widely used in many fields, especially as a power battery for new energy vehicles. With the continuous popularization of new energy vehicles and the gradual improvement of performance, users have put forward higher and higher requirements for the mileage and power performance of new energy vehicles. Therefore, the requirements for the use of power batteries in new energy vehicles have also changed. getting higher and higher. For the battery packs used in new energy vehicles, while the overall capacity requirements are constantly increasing, the total weight of the battery packs is also required to be reduced as much as possible. Generally speaking, the capacity of batteries used in ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/249H01M50/213H01M50/289H01M50/258H01M50/51H01M50/593
CPCH01M50/258H01M50/51H01M50/249H01M50/593H01M50/103H01M50/112H01M2220/20H01M50/291H01M50/209Y02E60/10H01M50/289H01M10/0525H01M50/46H01M10/482
Inventor 陆可为牟晓文刘彦初朱婧妍余璇
Owner BYD CO LTD
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