Unlock instant, AI-driven research and patent intelligence for your innovation.

Liquid lithium ion accumulator with aluminum plastic composite film

An aluminum-plastic composite film and storage battery technology, which is applied in the storage battery field, can solve the problems of complex battery manufacturing process, electrode group damage, and low yield rate, and achieve the effects of easy mechanized continuous production, stable performance, and high yield rate

Inactive Publication Date: 2009-05-20
CITIC GUOAN MENGGULI NEW ENERGY TECH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are disadvantages such as complex battery manufacturing process, low yield, low battery output power, and high cost.
The existing patent uses the method of adding a hard fixing frame outside the pole group, but the metal hard fixing frame is easy to pierce the aluminum-plastic composite film during processing and use, and the pole group is prone to damage when it is placed in a metal or organic hard fixing frame. Due to friction, the electrode group is damaged, and the yield of the battery is reduced

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
  • Liquid lithium ion accumulator with aluminum plastic composite film
  • Liquid lithium ion accumulator with aluminum plastic composite film
  • Liquid lithium ion accumulator with aluminum plastic composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Production of 1882130 (18mm thick x 82mm wide x 130mm high) batteries, in which the positive active material is LiMn 2 o 4 , the negative electrode active material is graphite, the diaphragm material is PE, and the main salt of the electrolyte is LiPF 6 (1M), the solvent is EC, EMC and DMC, and its volume ratio is 1:1:1. Put the pole group into the mold, heat the mold to 60°C, inject modified polyethylene into the mold, cool it down to 35°C quickly, demould, put the pole assembly with the mold frame into the aluminum-plastic composite film, inject After the electrolyte is sealed, it is charged and discharged three times with a current of 0.2C. The charge cut-off voltage is 4.3V, and the discharge cut-off voltage is 3.0V. Use 0.5C current to do charge and discharge cycles, the charge cut-off voltage is 4.3V, and the discharge cut-off voltage is 3.0V. For the relationship between battery discharge capacity and cycle times, see figure 2 . The battery without the above...

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

A liquid state lithium ion battery with aluminum-plastic complex film includes an electrode assembly made up of anodes (1), cathodes (2) and diaphragms (3); electrolyte and aluminum-plastic complex film (4), wherein the electrode assembly is surrounded by frame (5), and the frame (5) is formed by injection mold with shaped electrode assemblies as mould.

Description

technical field [0001] The invention relates to a storage battery, more specifically, to a liquid lithium-ion storage battery with aluminum-plastic composite film. Background technique [0002] Generally, the aluminum-plastic composite film liquid lithium-ion battery is placed in the aluminum-plastic composite film bag after the electrode is formed, and the aluminum-plastic composite film liquid lithium-ion battery is made by the vacuum heat sealing process after liquid injection. During the charge and discharge process, due to the lattice change of the electrode material, the thickness of the battery changes at the same time, which makes the distance between the positive and negative electrodes change, and the performance of the battery decreases rapidly. Although there is an atmospheric pressure outside the battery to slow down this change, if the force is too small, especially if a small amount of gas is generated in the battery, then this pressure will disappear. Philip...

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): H01M10/40H01M2/02H01M10/058H01M10/38H01M50/103H01M50/121H01M50/124
CPCY02E60/12H01M2/1094H01M2/0217H01M10/0585H01M2/0277H01M2/0207H01M2/0295H01M10/0486H01M2/0275H01M2/0285Y02E60/10H01M50/103H01M50/24Y02P70/50H01M50/121H01M10/05
Inventor 毛永志闫建忠安平晨晖其鲁
Owner CITIC GUOAN MENGGULI NEW ENERGY TECH