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Single battery, power battery pack and vehicle

A technology of power battery pack and single battery, applied in the field of vehicles, can solve the problems of normal operation, high use cost and high maintenance cost, and achieve the effect of facilitating subsequent repair, improving overcurrent capability and reducing internal resistance

Active Publication Date: 2022-01-07
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the current single batteries are equipped with a positive electrode terminal and a negative electrode terminal. In this way, when one electrode terminal of the single battery fails, the entire single battery is paralyzed and cannot work normally, and the battery needs to be replaced again, which is expensive. In addition, the batteries are bonded with structural glue, which is not easy to disassemble, resulting in high maintenance costs, and there is room for improvement

Method used

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  • Single battery, power battery pack and vehicle
  • Single battery, power battery pack and vehicle
  • Single battery, power battery pack and vehicle

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Embodiment Construction

[0027] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are only for explaining the present application, and should not be construed as limiting the present application.

[0028] Refer below Figure 1-Figure 2 Describe the single battery 100 according to the embodiment of the present application, the single battery 100 has at least four electrode terminals, and when the four electrode terminals are all electrically connected to the pole core, the current conduction path of the single battery 100 can be shortened, Reduce the internal resistance of the single battery 100, improve the overcurrent capability, and when two of the four electrode terminals are turned on, the other two electrode termi...

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PUM

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Abstract

The present application discloses a single battery, a power battery pack and a vehicle. The single battery includes: a casing and a pole core located in the casing; the casing has a plurality of faces, at least two The surface is provided with electrode terminals that are electrically connected to the pole core and extend out of the housing for current extraction, and the number of the electrode terminals on each of the surfaces is at least two; There are tabs, and the electrode terminals are electrically connected to the pole core through the tabs; 0.15≤S / V≤0.2, where S is the surface area of ​​the single cell, and V is the volume of the single cell . In the single battery of the present application, when the four electrode terminals are all electrically connected to the pole core, the current conduction path of the single battery can be shortened, the internal resistance of the single battery can be reduced, and the overcurrent capability can be improved.

Description

technical field [0001] The present application relates to the technical field of vehicle manufacturing, and in particular to a single battery, a power battery pack with the single battery, and a vehicle with the power battery pack. Background technique [0002] Most of the current single batteries are equipped with a positive electrode terminal and a negative electrode terminal. In this way, when one electrode terminal of the single battery fails, the entire single battery is paralyzed and cannot work normally, and the battery needs to be replaced again, which is expensive. In addition, the batteries are bonded with structural glue, which is not easy to disassemble, resulting in high maintenance costs, and there is room for improvement. Contents of the invention [0003] This application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to propose a single battery, which can pass through the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/548H01M50/553H01M50/502H01M50/572
CPCH01M2220/20Y02E60/10
Inventor 江文锋何科峰王信月马宁朱燕
Owner BYD CO LTD