Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Formation method of lithium battery

A chemical synthesis method and technology for lithium-ion batteries, applied in the field of lithium-ion batteries, can solve the problems of high risk, long production cycle, affecting battery performance, etc., and achieve the effects of improving product quality, improving qualification rate, and shortening pre-charging time.

Inactive Publication Date: 2013-06-19
SINOWATT DONGGUAN
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this formation method is that the production cycle is too long and the risk is high, because the battery is not sealed at this time, and moisture is extremely easy to enter the inside of the battery, affecting the performance of the battery

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Formation method of lithium battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Fill the baked battery with liquid for the first time. The liquid injection volume is 80% of the design requirement. The battery aging time is 0-30 minutes and then it is pre-charged in the cabinet. The pre-charging current is 0.6C and the charging time is 15 minutes. After pre-charging, measure the voltage under the cabinet, refill 20% electrolyte and seal it. The temperature of the forming environment needs to be ≥15°C, and the dew degree should be ≤-10°C.

Embodiment 2

[0018] Fill the baked battery with liquid for the first time. The liquid injection volume is 75% of the design requirement. The battery aging time is 0-30 minutes and then it is pre-charged in the cabinet. The pre-charging current is 0.5C and the charging time is 30 minutes. After pre-charging, measure the voltage under the cabinet, refill 25% electrolyte and seal it. The temperature of the forming environment needs to be ≥15°C, and the dew degree should be ≤-10°C.

Embodiment 3

[0020] Fill the baked battery with liquid, the liquid injection volume is 100% of the design requirement, the aging time of the battery is 0-30 minutes, and then it is pre-charged in the cabinet. The pre-charging current is 0.7C and the charging time is 10 minutes. After the pre-charging is completed, go out of the cabinet to measure the voltage, and then seal it. The temperature of the forming environment needs to be ≥15°C, and the dew degree should be ≤-10°C.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a formation method of a lithium battery, wherein the formation method of the lithium battery is high in efficiency, high in uniformity, and fast. According to the formation method of the lithium battery, a process of aging is not needed, and only a process of charging is needed, and the charging amount is 8%-20% of the whole capacity of the battery. Production time is greatly shortened. Production efficiency is improved. And quality of products is improved at the same time.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to a formation method of lithium ion batteries. Background technique [0002] At present, lithium-ion batteries have been widely used in various fields, such as various portable electronic devices, mobile power supplies, electric tools, electric vehicles and so on. Although the demand for lithium-ion batteries is increasing day by day, there are more and more manufacturers producing lithium-ion batteries, and the competition among manufacturers is becoming more and more fierce. Therefore, improving and perfecting the process, improving product quality, increasing production efficiency, and reducing production costs can improve the competitiveness of enterprises. [0003] At present, the traditional formation method of lithium-ion batteries is to age the cells for a long time after filling the liquid, and charge them with a current of no more than 0.1C for a long time ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M10/058H01M10/44
CPCY02E60/10Y02P70/50
Inventor 李树军郭密王珍珍谢玉杰林海军黄波
Owner SINOWATT DONGGUAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com