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Lithium battery storage and processing device and storage and processing method

A technology of processing device and processing method, which is applied in the direction of battery circuit device, circuit device, secondary battery repair/maintenance, etc., and can solve problems such as adverse effects on battery performance

Active Publication Date: 2021-07-27
SHURE ELECTRONICS SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the latter case, long periods of inactivity may adversely affect the performance of the battery itself

Method used

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  • Lithium battery storage and processing device and storage and processing method
  • Lithium battery storage and processing device and storage and processing method
  • Lithium battery storage and processing device and storage and processing method

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Experimental program
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Effect test

no. 1 approach

[0022] The storage and processing device of this embodiment is used for storing and processing lithium batteries that have not been used for a long time and need to be stored. After storage and treatment, the self-discharge rate and health of the lithium battery are conducive to maintaining a good state for a long time, and the safety performance of the lithium battery will also be in a good state.

[0023] As a processing object, the storage processing apparatus of this embodiment is aimed at, for example, a rechargeable lithium battery (secondary battery). The most common rechargeable lithium batteries are polymer lithium batteries and ternary lithium batteries. With the popularization of smart batteries, at present, these rechargeable lithium batteries themselves have a built-in fuel gauge, which can read the voltage value of the battery and other various information from the fuel gauge.

[0024] figure 1 It is an external front view of the storage processing apparatus 1 ...

no. 2 approach

[0068] The first embodiment of the present invention has been described above. However, the inventor has also realized that the state of health (SOH) of the lithium battery itself will also affect the corresponding relationship between the state of charge and the indication of the remaining power. For the same lithium battery, with repeated use, the health of the lithium battery will gradually deteriorate from the initial 100%. As the health deteriorates, the corresponding relationship between the state of charge and the indication of remaining power also changes. The existing storage processing method does not take into account the change in the corresponding relationship between the state of charge and the indication of the remaining power caused by the change in the health level. As a result, it is likewise not possible to reliably adjust lithium batteries to optimal storage conditions.

[0069] The second embodiment of the present invention aims to eliminate the influenc...

no. 3 approach

[0076] In the first embodiment, the discharge cell is switched to the voltage V drain_change set to be less than the discharge execution threshold voltage V drain_thres And greater than the termination voltage value V term . However, in the third embodiment, switching the discharge cell to the voltage V drain_change Also set to the termination voltage value V term .

[0077] Specifically, in the third embodiment, the discharge cell is switched to the voltage V drain_change set to the termination voltage value V term . In the discharge process, the high-speed discharge is first performed through the high-speed discharge unit 31, when the voltage value V of the lithium battery BAT BAT down to the termination voltage value V term , the processing unit 10 sends a discharge unit switching command to the discharge unit 30, and the low-speed discharge unit 32 replaces the high-speed discharge unit 31 for discharging.

[0078] This is because the discharge current I of the hi...

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Abstract

Embodiments of the present invention provide an apparatus for storing and handling rechargeable lithium batteries. The storage and processing device (1) includes: at least one battery storage unit (40) for storing the lithium battery to be processed; at least one charging unit (20) for charging the lithium battery; at least one discharging unit (30) for charging the lithium battery Discharging; processing unit (10), obtains the voltage value (V BAT ), according to the obtained voltage value (V BAT ), the lithium battery is charged by the charging unit (20) or the lithium battery is discharged by the discharge unit (30), so that the voltage value of the lithium battery (V BAT ) reaches the termination voltage value (V term ). In addition, the embodiment of the present invention also provides a storage treatment method for storage treatment of a rechargeable lithium battery.

Description

technical field [0001] The invention relates to a storage and treatment device and a storage and treatment method for storing and treating lithium batteries. Background technique [0002] At present, rechargeable lithium batteries, especially intelligent lithium batteries, have been widely used as power sources in electronic devices such as various digital products. In general, there is no need to remove the battery from the electronic device during normal use of the electronic device. However, if the electronic device is not used for a long time, it is necessary to remove the battery from the electronic device and store it separately. [0003] In the latter case, long periods of inactivity may adversely affect the performance of the battery itself. Moreover, during storage, especially in the case that the battery needs to be transported during storage, it is also desired that the safety performance of the battery is kept in a good condition. [0004] For this reason, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H02J7/0063H02J7/007Y02E60/10
Inventor 赵亚明
Owner SHURE ELECTRONICS SUZHOU
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