Capacity-grading and set-matching method of lithium ion battery

A technology for lithium-ion batteries and single-cell batteries, applied in the field of lithium-ion batteries, can solve the problems of voltage difference consistency, affecting the service life of the battery, and not considering the internal resistance polarization of the single-cell battery, so as to improve the consistency and improve the use. effect of life

Active Publication Date: 2014-12-17
北京创元万威能源科技有限公司
6 Cites 25 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the existing lithium-ion battery grouping method does not consider that the internal resistance polarization of the single battery is easy to occur under high current discharge, and the single battery of the same capacity cannot be fully charged and discharged at the same time, ...
View more

Abstract

The invention discloses a capacity-grading and set-matching method of a lithium ion battery. The method includes following steps: S1: detecting internal resistance of each single battery cell and dividing the single battery cells into a plurality of grades according to the internal resistances of the single battery cells; S2: respectively detecting each grade of the single battery cells and classifying each grade of the single battery cells; and S3: performing a set-matching operation to the single battery cells in same grade and same classification according to a cut-off voltage. By means of the method, consistency of a voltage difference during heavy-current discharge of the single battery cells which are matched in one set can be increased, thereby prolonging a service life of a set-matched battery.

Application Domain

Electrical testingSecondary cells testing +1

Technology Topic

EngineeringLithium electrode +5

Image

  • Capacity-grading and set-matching method of lithium ion battery
  • Capacity-grading and set-matching method of lithium ion battery

Examples

  • Experimental program(1)
  • Effect test(1)

Example Embodiment

[0025] Embodiment: A method for dividing capacity and grouping of lithium-ion batteries in this embodiment, such as figure 1 As shown, including the following steps:
[0026] S1: Detect the internal resistance of each single battery, and divide the single battery into several files according to the internal resistance of the single battery;

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Connector among plates and electronic device

InactiveCN101685913AImprove production and installation efficiencyimprove consistency
Owner:HUAWEI TECH CO LTD

Vibration control method and device and computer readable storage medium

PendingCN112269895Aimprove consistencyEnhance the interactive experience of vibration sense
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Full-automatic metal bent pipe polisher

InactiveCN107097140Agood polishing qualityimprove consistency
Owner:FOSHAN YUEYING INTELLIGENT MACHINERY EQUIP CO LTD

Welding method for grid composite plates

InactiveCN102500877ASolve wasteimprove consistency
Owner:XINXING DUCTILE IRON PIPES CO LTD

Classification and recommendation of technical efficacy words

  • Extended service life
  • improve consistency

Fracturing manifold quick connecting device

Owner:YANTAI JEREH PETROLEUM EQUIP & TECH

Modified asphalt composition with creeping characteristic and preparation method thereof

InactiveCN102020859Aavoid rapid agingExtended service life
Owner:ZHEJIANG WOPUMAN HIGH NEW MATERIALS

Silicon microphone and manufacturing method thereof

InactiveCN101835078Aimprove consistency
Owner:AAC ACOUSTIC TECH (SHENZHEN) CO LTD +1

Combined detector and combined detecting method for switch state of DC ground resistance

InactiveCN1687799AHigh-precision detectionimprove consistency
Owner:NANJING NORMAL UNIVERSITY

Automatic charging and discharging equilibrium device for battery pack

InactiveCN103647327Aimprove consistencyMaintain charge and discharge performance
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Electronic expansion valve

Owner:ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD

Wafer susceptor and chemical vapor deposition apparatus

InactiveUS20120240859A1improve consistencyuneven temperature
Owner:CHI MEI LIGHTING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products