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Battery bag with temp regulating function

A technology for temperature regulation and battery packs, applied in temperature control, secondary batteries, battery pack components, etc., to achieve the effects of reducing maintenance costs, prolonging service life, and reducing use costs

Inactive Publication Date: 2006-11-29
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The battery pack with temperature regulation function provided by the present invention effectively solves the long-term unresolved problems in this field, not only satisfying the best working performance of the battery pack under high temperature conditions, but also solving the problem of optimal working performance of the battery pack under low temperature conditions. Working performance overcomes the shortcomings of the prior art that can only solve one of the above two situations, not only makes the battery pack have excellent performance in work, but also prolongs the service life of the battery pack and reduces the cost of use

Method used

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing:

[0011] According to the battery pack with temperature regulating function provided by the present invention, such as figure 1 with figure 2 As shown, the present invention includes a battery pack 1 and a battery pack case 3; wherein, a layer of phase change material 2 is filled between the battery pack 1 and the battery pack case 3, and the phase change temperature of the phase change material 2 is between 0-60 ℃, in direct contact with the battery pack 1. The phase change material 2 is used to adjust the temperature of the battery pack, and control the temperature of the battery pack within a range of 0-60° C. or a narrower range. The battery pack casing 3 is used to seal the phase change material 2 to prevent leakage of the phase change material 2 . The phase change material 2 is in direct contact with the surface of the battery pack 1, so that the limited surface are...

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Abstract

This invention provides a cell package with a temperature regulation function including a package shell, in which, a phase change material of 0-60deg. C is filled between the cell set and the package and contacted with the cell set directly, which can prolong the life time of cells and reduce the cost.

Description

technical field [0001] The invention belongs to the field of battery packs, and relates to a temperature-adjustable battery pack, in particular to a battery pack using a phase-change material (PCM) for temperature control. Background technique [0002] Generally, when the secondary battery is working at ambient temperature, the charging and discharging of the battery can be carried out normally, and its best performance can be exerted, but at a higher temperature (higher than 60°C) or a lower temperature (lower temperature). When working at 0°C), affected by the temperature, the working performance of the battery will be reduced, specifically manifested as difficulties in charging or discharging, increased internal pressure, and shortened battery life. [0003] In most cases, it is necessary to assemble many single cells in parallel or in series in different forms to form a battery pack. Sometimes, several battery packs are combined in series or in parallel to provide the re...

Claims

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Application Information

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IPC IPC(8): H01M10/50C09K5/06G05D23/00H01M10/00H01M2/10H01M10/617H01M10/625H01M10/653H01M50/24H01M50/244
CPCY02E60/10
Inventor 周文会
Owner BYD CO LTD
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