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Single secondary battery formation method

A technology of secondary battery and formation method, which is applied in the direction of secondary battery, secondary battery charging/discharging, secondary battery repair/maintenance, etc. Reduced equipment types and high efficiency

Active Publication Date: 2015-03-11
上海奇可网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the formation of batteries depends entirely on external power sources, which consumes a lot of energy and is a heavy burden on the power grid.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] refer to figure 1 , the formation method of a single secondary battery, first connect a plurality of single secondary batteries that need to be discharged and formed in parallel to form a discharge battery module 1, and connect a plurality of single secondary batteries that need to be charged and formed in parallel to form a The rechargeable battery module 2, there is a voltage difference between the discharge battery module 1 and the rechargeable battery module 2, after the discharge battery module 1 is connected in series with a boost energy storage battery module 3, it is connected in parallel with the rechargeable battery module 4 to form a charge-discharge circuit, the boosted energy storage battery module 3 is connected with a charging circuit 4 that keeps the voltage of the boosted energy storage battery module 3 stable, and when the single secondary battery in the discharged battery module 1 is discharged, the voltage is maintained at a stable voltage. The boost...

Embodiment 2

[0037] refer to figure 2 The difference between this embodiment and the first embodiment is that the discharge battery module 1 is composed of a plurality of discharge battery modules 1 connected in series. The rechargeable battery module 2 is also composed of multiple rechargeable battery modules 2 connected in series. It can realize the formation of larger batches of single secondary batteries and improve efficiency. The rest of the structures and functions are the same as those in Embodiment 1.

Embodiment 3

[0039] refer to image 3 , Figure 4 The difference between this embodiment and the first embodiment is that the discharge battery module 1 is a single secondary battery lattice structure composed of a plurality of single secondary batteries mixed and connected in series. The rechargeable battery module 2 is a lattice structure of single secondary batteries composed of a plurality of single secondary batteries mixed and connected in series. It can realize the formation of more batches of single secondary batteries and improve efficiency. The rest of the structures and functions are the same as those in Embodiment 1.

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Abstract

The present invention provides a single secondary battery formation method. According to the single secondary battery formation method, a plurality of single secondary batteries requiring formation are connected in parallel to form a discharged battery module, a plurality of single secondary batteries requiring formation are connected in parallel to form a rechargeable battery module, the voltage difference exists between the discharged battery module and the rechargeable battery module, the discharged battery module and the rechargeable battery module are connected in parallel to form a charging-discharging loop after the discharged battery module and a voltage increasing energy storage batter module are connected in series, the voltage increasing energy storage batter module is connected with a charging circuit capable of maintaining the stable voltage of the voltage increasing energy storage batter module, and when the single secondary batteries in the discharged battery module perform formation discharging, the single secondary batteries in the discharged battery module and the voltage increasing energy storage batter module always being at the voltage-stabilizing state co-perform the charging on the single secondary batteries in the rechargeable battery module so as to complete the charging formation of the single secondary batteries in the rechargeable battery module. The single secondary battery formation method has characteristics of effective energy source utilization, single battery batch formation achieving, and formation efficiency increasing.

Description

technical field [0001] The invention relates to a method for forming a single secondary battery. Background technique [0002] Lithium batteries have the advantages of high voltage, large specific energy, long charge and discharge life, safety and environmental protection, etc., so they are widely used in various electronic products (such as mobile phones, digital cameras, notebook computers, power tools), portable small appliances, electric vehicles and energy storage systems. [0003] The preparation process of lithium batteries is complicated, including stirring, coating, drying, bare cell preparation, packaging and formation, among which the formation process is an indispensable process in the preparation process of lithium batteries, which plays a crucial role in the performance of lithium batteries. important role. Formation is to use special battery charging and discharging equipment to carry out charge and discharge tests on the finished batteries, to test each bat...

Claims

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Application Information

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IPC IPC(8): H01M10/44
CPCH01M10/058H01M10/44H01M10/441Y02E60/10
Inventor 许玉林阳如坤王爱淑
Owner 上海奇可网络科技有限公司
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