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Method for fabricating energy stored lithium battery pile, and energy stored lithium battery pile

A technology of a lithium battery pack and a manufacturing method, applied in the field of power supplies, capable of solving problems such as overcharging of a single lithium battery, short cycle life, short standby time of an energy storage lithium battery pack, etc.

Inactive Publication Date: 2007-02-21
苏州富源科技能源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a method for manufacturing an energy storage lithium battery pack and an energy storage lithium battery pack, which are used to solve the problem in the prior art that some single lithium batteries will be overcharged when the incoming single lithium batteries are inconsistent. , over-discharge, and lead to short standby time, short cycle life, low safety and stability of the energy storage lithium battery pack

Method used

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  • Method for fabricating energy stored lithium battery pile, and energy stored lithium battery pile
  • Method for fabricating energy stored lithium battery pile, and energy stored lithium battery pile
  • Method for fabricating energy stored lithium battery pile, and energy stored lithium battery pile

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Embodiment Construction

[0062] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0063] The main purpose of the present invention is to maintain the consistency of the single lithium batteries constituting the energy storage lithium battery pack. The consistency of a single lithium battery is mainly reflected in the consistency of its capacity, the consistency of the electricity contained, the consistency of the charge and discharge state, etc. In order to achieve the consistency of the single lithium battery within a certain reasonable range, we can achieve the goal by measuring the following parameters and ensuring that the difference between each parameter and the reference value is within a reasonable range. Two of the parameters are the static parameters of the single lithium battery, that is, the open circuit voltage and static internal resistance in the steady state open circuit; the other four parameters are t...

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Abstract

The invention solves issue of low performance of energy stored lithium battery pile caused by inconsistent parameter of single lithium battery in procedure for producing lithium battery pile. The method includes steps: calculating difference values between open circuit voltages of multiple single lithium batteries and referenced open circuit voltage so as to obtain multiple single lithium batteries, in which the said difference values are smaller than a prearranged threshold; according to requirement of quantity of single lithium battery, the obtained multiple single lithium batteries are combined in series and parallel so as to form energy stored lithium battery pile. The invention is important for raising performance, charge-discharge efficiency, prolonging stand-by time and service life of periodic duty of lithium battery pile as well as reinforcing safety and stability. The invention is feasible and convenient for operation.

Description

technical field [0001] The invention relates to the field of power sources, in particular to a method for manufacturing an energy storage lithium battery pack and an energy storage lithium battery pack. Background technique [0002] The energy storage lithium battery packs currently used in portable computer mobile power systems and other fields are mainly composed of lithium-ion batteries combined in series / parallel. The usual combinations are 3 strings and 2 parallels, 3 strings and 3 parallels, 4 strings and 2 parallels, and so on. Usually the nominal voltage is generally 10.8V or 14.4V, and the nominal capacity is 4400mAh or 6600mAh. At present, some mobile power supply manufacturers adopt random combination of single lithium batteries of the same specification from the same battery supplier when assembling lithium battery packs for energy storage, while manufacturers with more advanced technology adopt the former based on the former, and then require the same batch Th...

Claims

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Application Information

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IPC IPC(8): H01M10/00H01M10/40H01M6/42H01M10/0525
CPCY02E60/122Y02E60/10
Inventor 李云杰
Owner 苏州富源科技能源有限公司
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