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

Lithium ion battery and lithium ion battery charge-discharge control method and device

A lithium-ion battery, charge-discharge control technology, applied in secondary battery charging/discharging, electrolyte storage battery manufacturing, secondary batteries, etc. and other problems to achieve the effect of increasing the overall capacity

Active Publication Date: 2021-03-05
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you use a lithium-ion battery with a high charging rate, the charging speed is fast, but due to the low volumetric energy density, if you want to increase the capacity of the lithium-ion battery, you can only increase the volume of the lithium-ion battery. The size of the device increases
If you use a lithium-ion battery with a low charging rate, although the lithium-ion battery has a large capacity, the charging speed is slow
Therefore, it is difficult for current lithium-ion batteries to meet people's needs in terms of battery capacity and charging speed at the same time.

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
  • Lithium ion battery and lithium ion battery charge-discharge control method and device
  • Lithium ion battery and lithium ion battery charge-discharge control method and device
  • Lithium ion battery and lithium ion battery charge-discharge control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0026] The present disclosure provides a lithium ion battery. The lithium-ion battery includes a high-rate cell group and a low-rate cell, the high-rate cell group and the low-rate cell are connected in parallel, and the high-rate cell group includes a plurality of high-rate cells connected in series, The charging rate of a single high-rate cell is greater than that of a single low-rate cell, a...

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 relates to a lithium ion battery and a lithium ion battery charging and discharging control method and device. The method is applied to a terminal, and the lithium ion battery comprisesa high-rate battery cell group and a low-rate battery cell; the high-rate battery cell group and the low-rate battery cell are connected in parallel, and the high-rate battery cell group comprises a plurality of high-rate battery cells connected in series; the charging multiplying power of a single high-multiplying-power battery cell is greater than that of a single low-multiplying-power battery cell, and the method comprises the following steps: acquiring a charging and discharging instruction for the lithium ion battery; preferentially charging the high-rate battery cell group according to the obtained charging instruction, or discharging the lithium ion battery according to the obtained discharging instruction and the temperature of the lithium ion battery. According to the method, theoverall capacity of the lithium ion battery is improved, and meanwhile, the requirement of a user for supplementing certain electric quantity in a short time is met.

Description

technical field [0001] The present disclosure relates to the field of lithium-ion batteries, in particular to a lithium-ion battery and a charging and discharging control method and device for the lithium-ion battery. Background technique [0002] At present, people have higher and higher requirements for lithium-ion battery capacity and charging speed. The volumetric energy density of a lithium-ion battery with a low charging rate is much greater than that of a lithium-ion battery with a high charging rate. Therefore, for a lithium-ion battery, the higher the charging rate, the shorter the charging time and the smaller the volumetric energy density. If you use a lithium-ion battery with a high charging rate, the charging speed is fast, but due to the low volumetric energy density, if you want to increase the capacity of the lithium-ion battery, you can only increase the volume of the lithium-ion battery. The size of the device increases. If you use a lithium-ion battery w...

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): H01M10/058H01M10/0525H01M10/44
CPCH01M10/058H01M10/0525H01M10/446H01M10/441Y02E60/10Y02P70/50
Inventor 张金虎魏学文李光胤
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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