Method of controlling discharge, battery pack, electrical storage system, electronic apparatus and electric vehicle

A technology for discharge control and battery packs, which is applied in the field of power systems and can solve problems such as reducing the performance of battery packs

Active Publication Date: 2013-05-08
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If the battery pack is not used for a long time in a high temperature environment, the performance of the battery pack will be reduced due to the expansion of the battery pack or the generation of gas

Method used

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  • Method of controlling discharge, battery pack, electrical storage system, electronic apparatus and electric vehicle
  • Method of controlling discharge, battery pack, electrical storage system, electronic apparatus and electric vehicle
  • Method of controlling discharge, battery pack, electrical storage system, electronic apparatus and electric vehicle

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no. 2 approach

[0029] 3. Modification

[0030] 4. Application example

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Abstract

The present disclosure relates to a method of controlling discharge of a battery pack, a battery pack, an electrical storage system, an electronic apparatus, and an electric vehicle. The method of controlling discharge in a battery pack, including: measuring an ambient temperature of a battery cell and a voltage of the battery cell; a first discharge processing of discharging the battery cell until the voltage of the battery cell becomes a second voltage lower than a first voltage when the ambient temperature is higher than a first predetermined temperature and the voltage of the battery cell is higher than the first voltage; and a second discharge processing of discharging the battery cell until the voltage of the electrical battery cell becomes a fourth voltage lower than a third voltage when the ambient temperature is lower than the first predetermined temperature and the voltage of the battery cell is higher than the third voltage.

Description

technical field [0001] The present invention relates to, for example, a discharge control method of a battery pack, a battery pack, a power storage system, electronic equipment, an electric vehicle, and an electric power system using the battery pack. Background technique [0002] Power storage devices typified by batteries have been used in various electronic devices. A lithium ion secondary battery is an example of a battery type mainly used in electronic equipment. Lithium ion secondary batteries are widely used because they are rechargeable and capable of outputting high voltage. Recently, in order to meet the demand for higher output and capacity, assembled batteries composed of a plurality of battery cells connected in multiple series or parallel have been increasingly used. This assembled battery is housed in a container to form a battery pack. [0003] If the battery pack is not used for a long time in a high-temperature environment, the performance of the battery...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00
CPCY02E60/12Y02T10/7044Y02T10/7055H01M10/486H01M10/443H01M10/052B60L3/0046Y02T10/7011Y02T10/7005B60L2240/547Y02E60/122B60L2240/545Y02T10/705B60L11/1861H02J7/0016H02J7/0091H02J2310/48H02J7/007194B60L58/15B60L58/14Y02E60/10Y02T10/70H02J7/04H01M10/44B60L50/50
Inventor 野村烈
Owner MURATA MFG CO LTD
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