Power lithium-ion battery with temperature equalizing connection function

A connection function, lithium battery technology, applied in the direction of secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve the problems of short driving range, unsatisfactory sensory effect, capacity difference, etc., and achieve longer driving range Consistent effects with stable, external system effects

Inactive Publication Date: 2012-07-18
上海索锂科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the temperature of the battery on a pure electric vehicle cannot be limited to an effective range, and the gradient of the temperature field cannot be limited to a small range (3 to 5 degrees), the application environment of the battery will become very poor. There will also be differences in capacity, and as a result, the operating mileage of pure electric vehicles cannot be guaranteed, the driving mileage after charging will become smaller, and the service life of the battery will also be shortened accordingly.
[0006] At present, all battery applications solve this problem through the external heat dissipation and heat soaking of the battery. Because the external method is used to solve the internal variation of the battery, the system will become mo

Method used

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  • Power lithium-ion battery with temperature equalizing connection function
  • Power lithium-ion battery with temperature equalizing connection function
  • Power lithium-ion battery with temperature equalizing connection function

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Embodiment Construction

[0019] The present invention will be further explained below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0020] The embodiment of the present invention relates to a power lithium battery with temperature equalization connection function, such as figure 1 As shown, it includes a battery cell, the battery cell is provided with a battery positive connection part 2 and a battery negative connection part 3, the battery cell is covered with a heat soaking material 4, and the battery is covered with a heat soaking material 4 The cell is placed in the...

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Abstract

The invention relates to a power lithium-ion battery with a temperature equalizing connection function. The power lithium-ion battery comprises a battery cell which is provided with a battery anode connection portion and a battery cathode connection portion, the battery cell is covered with a heat equalizing material outside and is arranged inside a battery call casing, the heat equalizing material extends outside the battery call casing, and the heat equalizing material outside the battery call casing serves as a first outside connection portion. According to the power lithium-ion battery with the temperature equalizing connection function, the battery has a uniform temperature on the whole when used.

Description

Technical field [0001] The present invention relates to the technical field of lithium batteries, in particular to a power lithium battery with temperature equalization connection function. Background technique [0002] In all applications of the battery, the temperature consistency of each battery cell connected in parallel or in series will be very important. The temperature consistency will directly affect the consistency of the battery cell capacity; due to many occasions, especially pure electric In automotive applications, the battery is composed of more than hundreds of battery cells connected in series, and the charging process and discharging process are both applied in series. [0003] The battery cells connected in series constitute the high-voltage characteristics of the application system. For example, a pure electric bus has a rated voltage of 600VDC, and the system uses more than a few hundred cells to work in parallel and then in series. In order to ensure the cons...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/50H01M10/617
CPCY02E60/12Y02E60/10
Inventor 陆政德帅鸿元
Owner 上海索锂科技股份有限公司
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