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Power lithium ion battery

A lithium-ion battery and power technology, applied in the direction of battery cover/end cover, battery pack parts, battery and its environment isolation, etc., can solve problems such as mediocre performance, and achieve the effect of improving energy density and excellent power output characteristics

Pending Publication Date: 2021-12-10
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing PHEV batteries achieve a certain balance between energy density and power density, their performance is mediocre. They can neither provide high-energy endurance requirements for the vehicle as an energy-type battery, nor can they provide energy for the vehicle as a power-type battery. High-power auxiliary start-stop and braking functions

Method used

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Embodiment Construction

[0030] The lithium battery provided by the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] It should be noted that when an element is referred to as being “fixed on”, “disposed on”, or “installed on” another element, it may be directly on the other element or indirectly on the other element. However, an element is said to be "connected to" or "connected to" another element, and it may be directly connected to the other element or indirectly connected to the other element. In addition, connection generally refers to fixing, and the fixing here can be any conventional fixing method in the field, such as "threaded connection", "riveting", "welding" and so on.

[0032] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the o...

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PUM

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Abstract

The invention discloses a power lithium ion battery, which comprises: an accommodating part, wherein a first cavity and a second cavity which do not interfere with each other are formed in the accommodating part; a first pole group accommodated in the first cavity and comprising two power type battery cores which are connected in series; and a second pole group accommodated in the second cavity, wherein the second pole group is connected with the first pole group in parallel, and the second pole group comprises an energy type battery core. Through the design of the first pole group and the second pole group, the power lithium ion battery independently works in a relatively closed interval, so that the power lithium ion battery has high energy density and high rate performance.

Description

technical field [0001] The invention belongs to the technical field of secondary batteries, and in particular relates to a power lithium ion battery. Background technique [0002] Lithium-ion battery cells currently on the market are limited by the structure and design of the cells, and often exhibit a single performance, such as a single energy type cell or a single power type cell, which cannot balance high energy density and high power. characteristic. With the promotion of new energy vehicles, power lithium-ion batteries have developed rapidly, but there are still many problems in the application of new energy vehicles. [0003] Although the existing PHEV batteries achieve a certain balance between energy density and power density, their performance is mediocre. They can neither provide high-energy endurance requirements for the vehicle as an energy-type battery, nor can they provide energy for the vehicle as a power-type battery. High-power auxiliary start-stop and br...

Claims

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Application Information

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IPC IPC(8): H01M50/204H01M50/24H01M50/249H01M50/269H01M50/271H01M50/298H01M50/503
CPCH01M50/204H01M50/249H01M50/298H01M50/24H01M50/271H01M50/269H01M50/503Y02E60/10
Inventor 刘宏强王丰陈道明周巨奎
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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