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

A kind of ultra-low temperature lithium-ion battery and preparation method thereof

A lithium-ion battery, ultra-low temperature technology, which is applied in the manufacture of electrolyte batteries, secondary batteries, non-aqueous electrolyte batteries, etc.

Active Publication Date: 2022-04-19
LONG POWER SYST NANTONG CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if it is used in an ultra-low temperature environment of -40 to -50°C, it is difficult to meet the needs of high-voltage and high-current charging and discharging, and it is difficult to improve the charging and discharging capacity at ultra-low temperature.

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
  • A kind of ultra-low temperature lithium-ion battery and preparation method thereof
  • A kind of ultra-low temperature lithium-ion battery and preparation method thereof
  • A kind of ultra-low temperature lithium-ion battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The invention provides a preparation method of an ultra-low temperature lithium ion battery, such as Figure 1 to Figure 5 As shown, the lithium ion battery includes a positive electrode sheet, a negative electrode sheet, a ceramic separator, an electrolyte and a battery case 1, and is formed into a dry cell 2 by combining a positive electrode sheet-ceramic separator-negative electrode sheet-ceramic separator and stacking or winding them. The battery is made by putting the dry cell 2 into the battery case 1 and then injecting the electrolyte, opening, forming, sealing, and dividing the volume. The specific steps are as follows:

[0037] S1, prepare a positive electrode sheet: the active material of the positive electrode sheet is any one of lithium ferrous phosphate, lithium cobaltate, lithium manganate, lithium nickel cobalt manganate, and lithium nickel cobalt aluminate;

[0038] S2, preparing the negative electrode sheet: the active material of the negative electrode...

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

PropertyMeasurementUnit
thermal conductivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an ultra-low temperature lithium-ion battery and a preparation method thereof. The lithium-ion battery is mainly composed of five parts: a positive electrode sheet, a negative electrode sheet, a ceramic diaphragm, an electrolyte, and a battery case. ‑Ceramic diaphragm” is combined and stacked or wound into the battery case, injected with electrolyte, opened and formed, sealed, and volume-divided. S1, prepare positive electrode sheet; S2, prepare negative electrode sheet; S3, prepare ceramic diaphragm, S4, Preparation of electrolyte; S5, preparation of dry cells; S6, preparation of battery case: the battery case includes an inner case and an outer case, a buffer space is formed between the inner case and the outer case, the interior of the buffer space is in a vacuum state, and the interior of the buffer space is provided with isolation Supporting the shell skeleton of the inner shell and the outer shell, the invention realizes the improvement of the ultra-low temperature electrical performance of lithium-ion batteries of different specifications and models through the scientific application of materials and the rational optimization of the battery structure.

Description

technical field [0001] The invention relates to the technical field of secondary lithium ion batteries, in particular to an ultra-low temperature lithium ion battery and a preparation method thereof. Background technique [0002] Lithium-ion batteries have been widely used in the market due to their advantages of long cycle life, no memory effect, low self-discharge rate, safety and reliability, and environmental friendliness. However, it is difficult to meet the needs of high voltage and high current charge and discharge when it is used in an ultra-low temperature environment of -40 to -50 °C, and it is difficult to improve the ultra-low temperature charge and discharge capacity. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide an ultra-low temperature lithium ion battery and a preparation method thereof to solve one or more of the above-mentioned problems in the prior art. [0004] In order to solve the above technical problems, the p...

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 Patents(China)
IPC IPC(8): H01M10/0525H01M10/058H01M10/615H01M10/658
CPCH01M10/0525H01M10/058H01M10/615H01M10/658Y02E60/10Y02P70/50
Inventor 黄碧英黄耀泽唐天文
Owner LONG POWER SYST NANTONG 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