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Lithium ion power battery protection device and method

A power battery and protection device technology, applied in the field of lithium-ion power battery protection devices, can solve problems such as inconvenient maintenance, low production efficiency, wrong wiring, etc., and achieve the effect of reducing the difficulty of problem inspection and maintenance

Inactive Publication Date: 2016-09-21
广东亿纬赛恩斯新能源系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a lithium-ion power battery protection device and method to realize the modular management of the battery pack, thereby solving the problems of easy wiring errors, low production efficiency, and inconvenient maintenance

Method used

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  • Lithium ion power battery protection device and method
  • Lithium ion power battery protection device and method
  • Lithium ion power battery protection device and method

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Embodiment 1

[0036] figure 1 It is a schematic structural diagram of a lithium-ion power battery protection device provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of modularized management of the battery pack in the lithium battery. see figure 1 , the lithium-ion power battery protection device 10 provided in this embodiment is set in the lithium battery 01 and includes: at least two protection plates 110 .

[0037] Wherein, the protection board 110 is electrically connected with a set number of battery packs 120 respectively, and is used to manage the state of the connected battery packs 120, wherein the set number is less than the set number of battery packs 120 in the lithium battery 01. The total quantity, the set quantity can be one or more. Specifically, the state of the battery pack 120 may include at least one of a charge state, a discharge state, a temperature state, an overcharge protection state, and an overdischarge protectio...

Embodiment 2

[0044] figure 2 It is a schematic structural diagram of a protection board provided in Embodiment 2 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments. see figure 2 , the protection board in this embodiment may include: a sampling unit 111 and a control unit 112 .

[0045] Wherein, the sampling unit 111 is electrically connected to the set number of battery packs, and is used to sample the battery information data of the connected battery packs; the control unit 112 is electrically connected to the sampling unit, and is used to Based on the collected battery information data of the battery pack, the state of the battery pack is managed. Specifically, the sampling unit 111 can set the sampling period of the battery information data of the connected battery pack as required, and can also sample the battery information data of the connected battery pack in real time.

[0046] In the technical solution of this embodiment, the bat...

Embodiment 3

[0059] Figure 4 It is a flow chart of a lithium-ion power battery protection method provided by Embodiment 3 of the present invention. This embodiment is implemented by the lithium ion power battery protection device described in the above embodiments. see Figure 4 , the lithium battery protection method provided in this embodiment includes:

[0060] S110. Acquire in real time the voltage value and / or temperature value of a set number of battery packs, wherein the set number is less than the total number of battery packs in the lithium battery;

[0061] S120. If the voltage value of any cell group is inconsistent with the voltage value of other cell groups, and / or, when the temperature value of any cell group is higher than the set threshold, turn off the cell group;

[0062] Wherein, the set threshold can be any temperature value, and according to the heat resistance of the battery cell, it is preferably 60 degrees Celsius.

[0063] S130. If the voltage value of the clo...

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Abstract

The embodiment of the invention discloses a lithium ion power battery protection device and method, and relates to the technical field of lithium battery protection. The device comprises at least two protection plates which are electrically connected with battery cell groups of set quantity and are used for managing the states of the battery cell groups. The set quantity is smaller than the total quantity of the battery cell groups in the lithium battery. According to the lithium ion power battery protection device and method provided by the embodiment of the invention, modular management can be carried out on the battery cell groups; and therefore, the problems of wrong wiring, low production efficiency and inconvenient maintenance are solved.

Description

technical field [0001] Embodiments of the present invention relate to lithium battery protection technology, and in particular to a lithium ion power battery protection device and method. Background technique [0002] Due to the advantages of small size, light weight, high voltage, high power, less self-discharge and long service life, lithium battery packs have gradually become the mainstream of power batteries. Among them, a plurality of batteries are connected in parallel or in series to form a battery pack, and a plurality of battery packs are connected in series or in parallel and put into a battery box to form a lithium battery. The battery management system is connected to each battery pack through a detection line to manage the state of the battery. [0003] Because, usually, the number of battery packs in a lithium battery is about 100 or more, and all detection lines connecting the battery pack and the battery management system must be wired when the batteries are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/48
CPCH01M10/4207H01M10/482H01M10/486Y02E60/10
Inventor 袁书第党奎侯永坤黄国民刘金成
Owner 广东亿纬赛恩斯新能源系统有限公司
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