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

Cylinder type lithium ion battery electrolytic solution and preparation method thereof

A lithium ion battery, cylindrical technology, applied in the field of cylindrical lithium ion battery electrolyte and its preparation, can solve the problem that the performance of the cylindrical lithium ion battery is not well exerted, and achieve the effect of ensuring safety performance

Inactive Publication Date: 2008-11-12
DONGGUAN SHANSHAN BATTERY MATERIALS
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electrolyte solution in the prior art cannot penetrate into the positive and negative electrode materials of the battery well, so that the various performances of the cylindrical lithium-ion battery have not been brought into full play.

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 1

[0032] Fully mix and stir 75% of the total weight of organic solvents EC, DMC, and EMC according to 1:3:2 (wt%), and slowly add 17% of the total weight of lithium salt LiPF 6 , after the lithium salt to be added is fully dissolved, then add 3% of the additive VC accounting for the total weight, and then add the additive PS accounting for 5% of the total weight after fully stirring to make it fully stirred evenly, and then obtain the present product The lithium-ion battery electrolyte described in the invention.

Embodiment 2

[0034] Fully mix and stir 80% of the total weight of organic solvents EC, DMC, and EMC according to 1:3:2 (wt%), and slowly add 17% of the total weight of lithium salt LiPF 6 , after the lithium salt to be added is fully dissolved, then add 1% of the additive VC accounting for the total weight, and after fully stirring evenly, add the additive PS accounting for 2% of the total weight, make it fully stir evenly, and obtain the present invention after stirring evenly The lithium-ion battery electrolyte.

Embodiment 3

[0036] Fully mix and stir 83% of the total weight organic solvents EC, DMC, and EMC according to 1:3:2 (wt%), and slowly add 14% of the total weight lithium salt LiPF 6 , after the lithium salt to be added is fully dissolved, then add 1% of the additive VC accounting for the total weight, and after fully stirring evenly, add the additive PS accounting for 2% of the total weight, make it fully stir evenly, and obtain the present invention after stirring evenly The lithium-ion battery electrolyte.

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 provides a cylindrical lithium ion battery electrolyte, which consists of a lithium salt, an organic solvent and an additive, wherein, the mass ratios are respectively as follows: 12-17 percent of the lithium salt, 75-85 percent of the organic solvent and 3-8 percent of the additive. The preparation method for the cylindrical lithium ion battery electrolyte is that: the lithium salt, the organic solvent and the additive used in a lithium ion battery are reasonably combined, and the mass proportion is optimized, and then cylindrical lithium ion battery electrolyte is prepared through a reasonable technique. The obtained cylindrical lithium ion battery electrolyte satisfies the requirements of the capacity development, rate capability, the over-charging performance as well as the charge-discharge and the storage performance under high temperature of the cylindrical lithium ion battery, thus solving the described problems existing in the cylindrical lithium ion battery in the prior art.

Description

technical field [0001] The invention belongs to the technical field of lithium-ion battery materials, and relates to a lithium-ion battery electrolyte that uses organic compounds to form an optimal mass ratio performance, in particular to a cylindrical lithium-ion battery electrolyte and a preparation method thereof. Background technique [0002] Lithium-ion batteries are widely used because of their high working voltage, high specific energy, good safety, and no environmental pollution. With the development of lithium-ion battery technology, their performance indicators have been continuously improved. The positive and negative electrode materials used in lithium-ion batteries have also developed in a diversified direction, from a single intercalated lithium oxide to a variety of composite transition metals and nano-sized lithium intercalated oxides. Electrolyte also develops from liquid electrolyte to co-existence with polymer electrolyte and solid electrolyte. [0003] L...

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): H01M10/40H01M10/056H01M10/0567H01M10/0568H01M10/0569
CPCY02E60/122Y02E60/10
Inventor 陈柏源侯涛
Owner DONGGUAN SHANSHAN BATTERY MATERIALS
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