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

Battery charging method, device, device and storage medium

A battery charging and battery technology, applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve the problems of low charging efficiency and inability to fully utilize the charging capacity of rechargeable batteries, and achieve optimal service life and charging Safety, reduce the risk of battery overcharge, and improve the effect of charging efficiency

Active Publication Date: 2020-07-03
CONTEMPORARY AMPEREX TECH CO
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the charging method using constant current charging cannot give full play to the charging capacity of the rechargeable battery, the charging efficiency is low, and there are charging safety problems caused by the overcharging of the battery cells.

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
  • Battery charging method, device, device and storage medium
  • Battery charging method, device, device and storage medium
  • Battery charging method, device, device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0087] Set three charging stages, and set a group of charging current values ​​{43A, 22A, 12A} corresponding to the above three charging stages that decrease in order, and place the battery in a charging environment temperature of -10°C. The charging environment temperature determines the internal resistance value of the battery and charges the battery.

[0088] Charge with a current of 43A. During the charging process, the charging cut-off potential of the current charging stage is calculated according to the current charging current and the internal resistance of the battery to be 4.1V. The charging voltage of the battery is monitored. When the monitored charging voltage of the battery reaches 4.1V, the current is The rate of 10A per second is reduced from 43A to 22A.

[0089] Charge with a current of 22A. During the charging process, the charging cut-off potential of the current charging stage is calculated according to the current charging current and the internal resistan...

specific Embodiment 2

[0092] Set three charging stages, and set a group of charging current values ​​{65A, 22A, 12A} corresponding to the above three charging stages that decrease in order, and place the battery in a charging environment temperature of -10°C. The charging environment temperature determines the internal resistance value of the battery and charges the battery.

[0093] Charge with a current of 65A. During the charging process, according to the current charging current and the internal resistance of the battery, the charging cut-off potential of the current charging stage is calculated to be 3.8V. The charging voltage of the battery is monitored. When the monitored charging voltage of the battery reaches 3.8V, the current is The rate of 10A per second is reduced from 65A to 22A.

[0094] Charge with a current of 22A. During the charging process, the charging cut-off potential of the current charging stage is calculated according to the current charging current and the internal resista...

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 battery charging method, device and equipment and a storage medium. The battery charging method comprises the following steps: setting the charging current value In in the n-th charging stage of the battery charging process, wherein In is smaller than In-1; according to the charging environment temperature of a battery, using the relationship between the internal resistance of the battery and the charging environment temperature of the battery to determine the internal resistance value of the battery; based on In and the internal resistance value of the battery, calculating a charging cut-off voltage value Vn, corresponding to In, in the n-the charging stage; in the (n-1)-th charging stage, charging the battery by using In-1, and when the battery charging voltage reaches Vn-1, if n-1 is smaller than a charging stage sum, entering the n-th charging stage; in the (n-1)-th charging stage, charging the battery by using In-1, and when the battery charging voltage reaches Vn-1, if n-1 is equal to the charging stage sum, stopping charging. According to the battery charging method provided by the embodiment of the invention, the charging efficiency of the battery can be improved, and the risk of battery cell overcharging is reduced.

Description

technical field [0001] The invention belongs to the field of battery technology, and in particular relates to a battery charging method, device, equipment and storage medium. Background technique [0002] Nowadays, with the gradual consumption of non-renewable energy sources such as petroleum and the urgent need for environmental protection, new energy vehicles using rechargeable batteries as power sources have been widely promoted around the world. For example, new energy vehicles powered by lithium-ion batteries have developed rapidly in recent years; and an important criterion for measuring the performance of new energy vehicles is the charging time of rechargeable batteries. A shorter charging time can greatly improve new energy vehicles. The experience of using energy vehicles. [0003] Most existing technologies for charging rechargeable batteries, for example, in the battery charging technology of charging piles, the charging method of constant current charging is us...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H01M10/446H02J7/007Y02E60/10
Inventor 杜鑫鑫骆福平王升威付欣
Owner CONTEMPORARY AMPEREX TECH CO
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