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

Batching method for manufacturing lithium battery

A technology of lithium battery and processing method, applied in electrode manufacturing and other directions, can solve problems such as voltage lag and early failure, and achieve the effect of small internal resistance, good effect and low resistivity

Inactive Publication Date: 2009-12-30
焦作市亿星锂电厂
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the lithium battery has the above advantages, it has limited the further expansion of its application range due to its safety, voltage hysteresis, premature failure and other issues.
Among them, the safety performance of the battery under abuse is the most prominent. At present, the commonly used solutions include using the weak link of the battery, PCT thermistor current limiting, diode reverse current blocking and increasing current limiting output design, but none of them are very effective. Good solution to lithium battery safety and other defects

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Lithium batteries are mainly composed of positive electrode material and negative electrode material, in which the positive electrode material is composed of lithium manganate / lithium iron phosphate, conductive agent, PVDF binder and positive electrode lead, and the negative electrode material is composed of graphite, conductive agent, additives, water-based adhesive Mixture and negative electrode lead.

[0013] The batching process of lithium battery raw materials is as follows: 1. Pretreatment of raw materials: (1) Lithium manganese oxide / lithium iron phosphate: dehydrated, usually baked at 110°C for about 2 hours; (2) Conductive agent: dehydrated, generally used Bake at 200°C for about 2 hours; (3) Adhesive: Dehydration, generally bake at 110-120°C for about 2 hours, the baking temperature depends on the molecular weight; (4) NMP: Dehydration, use Dry molecular sieve dehydration or use special retrieving facilities for direct use; (5) Graphite: A. Mix to homogenize r...

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 batching method for manufacturing lithium batteries, comprising the steps of pretreatment of raw materials, blending, immersing, dispersing, flocculation and the like. The batching technical scheme of the invention has evenly distributed raw materials, fine combination of conductive agents, small resistance and high thermal conductivity, and can improve safety of the lithium batteries. The invention has fine dewatering and deoiling effect, small resistivity of raw materials, small internal resistance of the lithium batteries and little generated heat and can improve the safety of the lithium batteries.

Description

technical field [0001] The invention relates to a batching method for producing lithium batteries. Background technique [0002] Lithium battery is currently the electrochemical system battery with the highest practical specific energy. Its high voltage, wide operating temperature range, long service life and other advantages make it an irreplaceable power source for instruments and other equipment. Although lithium batteries have the above-mentioned advantages, their application range is limited due to problems such as safety, voltage hysteresis, and premature failure. Among them, the safety performance of the battery under abuse is the most prominent. At present, the commonly used solutions include using the weak link of the battery, PCT thermistor current limiting, diode reverse current blocking and increasing current limiting output design, but none of them are very effective. Solve the defects such as lithium battery safety well. Therefore, how to improve the performa...

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 Applications(China)
IPC IPC(8): H01M4/04
CPCY02E60/12Y02E60/10
Inventor 刘云选
Owner 焦作市亿星锂电厂
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