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

Lithium ion battery suitable for low-temperature environment

A lithium-ion battery, low-temperature environment technology, applied in the field of electrochemistry, can solve problems such as reduced discharge performance, and achieve the effects of improved discharge efficiency and output power, low cost, and reasonable design

Active Publication Date: 2008-06-11
WANXIANG 123 CO LTD
View PDF1 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves the technical problems existing in the prior art such as the reduction of discharge performance in low-temperature environments; it provides a device that can maintain normal discharge flow even in low-temperature environments, and is suitable for low-temperature environments with reasonable design and simple structure. lithium-ion 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
  • Lithium ion battery suitable for low-temperature environment
  • Lithium ion battery suitable for low-temperature environment
  • Lithium ion battery suitable for low-temperature environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] exist figure 1 Among them, the battery cells 6 are connected in parallel through the transition plate 5, and the transition plate 5 is connected to the pole on the case cover through the lead wire. The heat conduction component 9 has a layered structure, the electric core 6 is inserted into the heat conduction component 9 in turn, the heat conduction component 9 has grooves on both sides, the heating component 8 is inserted into the groove, the heat conduction component 9 is wrapped with the heat insulation layer 7, and then the whole is put into the casing 10 middle. After the two heating components 8 are connected in parallel, they are connected in series with the temperature control switch 4 and the control circuit 3, and then connected with the battery pole 1 to be powered by the battery. When the internal temperature of the battery is lower than 0°C, the temperature control switch 4 is turned on, the heating element 8 starts to generate heat, and the internal temp...

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 li-ion battery and a method for manufacturing the same and belongs to the electrochemical technical field, in particular to a li-ion battery used in low temperature environment. The invention mainly aims to the technical problem of lower discharge performance in a low temperature environment of the prior art and to provide a li-ion battery used in a low temperature environment which is capable of maintaining normal discharge in a low temperature environment and is reasonable in design, simple in structure and adaptable to low temperature environment. The technical proposal of the invention is that: the li-ion battery comprises a battery shell, a thermal insulating layer closely attached to the battery shell, a battery cell arrange inside the battery shell, a control component consisting of a temperature controlled switch and a control circuit, and a heat supply component consisting of a heating component and a heat conducting component.

Description

technical field [0001] The invention belongs to a lithium ion battery and a manufacturing method thereof in the field of electrochemistry, and in particular relates to a lithium ion battery suitable for a low-temperature environment. Background technique [0002] In a lithium-ion battery in a low-temperature environment below 0°C, the lithium ion conductivity of the electrolyte and SEI film decreases, the lithium ion diffusion rate of the negative electrode slows down, the electrochemical polarization increases, and the interface charge between the positive and negative electrodes and the electrolyte The transmission impedance increases, and the above factors lead to a decrease in the battery discharge efficiency, especially the high current discharge efficiency will be greatly reduced. [0003] With the current technical level, the low-current discharge capacity of the battery at -40°C is less than 50% of the theoretical capacity, and the high-current can hardly work. Alth...

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): H01M10/50H01M2/00H01M10/40H01M6/14H01M10/0525H01M10/058H01M10/615H01M10/657H01M50/10H01M50/14
CPCY02E60/122Y02E60/10Y02P70/50
Inventor 刘昊李建林王清泉邢彩虹郑利峰邓龙征
Owner WANXIANG 123 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