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

Electrode material, electrode plate, preparation method of electrode plate, and lithium ion battery

A technology of electrode material and electrode sheet, which is applied in the direction of battery electrodes, secondary batteries, non-aqueous electrolyte battery electrodes, etc., and can solve the problem that lithium-ion batteries cannot simultaneously reduce impedance

Inactive Publication Date: 2021-05-11
东莞维科电池有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to provide an electrode material that solves the problem that current lithium-ion batteries cannot simultaneously reduce impedance (DCR) and improve low-temperature discharge performance. The battery prepared by using the electrode material of the present invention can not only reduce DCR and improve Low temperature discharge performance without significantly affecting performance indicators such as high temperature cycle of the 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
  • Electrode material, electrode plate, preparation method of electrode plate, and lithium ion battery
  • Electrode material, electrode plate, preparation method of electrode plate, and lithium ion battery
  • Electrode material, electrode plate, preparation method of electrode plate, and lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of electrode material, comprises active substance material and fast ion conductor additive (FIC), and described fast ion conductor additive is Li 2 O-Al 2 o 3 -M a o b -SiO 2 -P 2 o 5 , wherein, M is Ti and / or Ge, 0

[0035] Further, the fast ion conductor additive is Li 2 O-Al 2 o 3 -TiO 2 -SiO 2 -P 2 o 5 (LATP), Li 2 O-Al 2 o 3 -GeO 2 -SiO 2 -P 2 o 5 (LAGP), Li 2 O-Al 2 o 3 -GeO 2 -TiO 2 -SiO 2 -P 2 o 5 (LAGTP) at least one.

[0036] Further, the fast ion conductor additive consists of Li 2 CO 3 、Al 2 o 3 , M a o b , NH 4 h 2 PO 4 and SiO 2 obtained by crystallization. With Li 2 CO 3 、Al 2 o 3 , M a o b , NH 4 h 2 PO 4 and SiO 2 Several substances are used as reaction raw materials, and the obtained fast ion conductor additives are not only easy to operate, efficient, and inexpensive, but also applied to electrode materials, which can effectively enhance the ion transmission capacity inside the pole p...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides an electrode material, an electrode plate, a preparation method of the electrode plate, and a lithium ion battery. The electrode material comprises an active substance material and a fast ion conductor additive (FIC), the fast ion conductor additive is Li2O-Al2O3-MaOb-SiO2-P2O5, M is Ti and / or Ge, 0 < a <= 2, and 0 < b <= 3. Compared with like electrode materials in the prior art, the electrode material provided by the invention has the advantages that the adopted fast ion conductor additive is a novel compound obtained from various oxides, so that the DCR can be reduced, the low-temperature discharge performance can be improved, meanwhile, the performance indexes such as high-temperature cycle and the like of the battery are not obviously influenced, and the problem that an existing lithium ion battery cannot give consideration to impedance reduction and low-temperature discharge performance improvement at the same time is solved.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to an electrode material, an electrode sheet, a preparation method thereof, and a lithium ion battery. Background technique [0002] Since its commercialization, lithium-ion batteries have been widely used in portable electronic devices due to their advantages such as high energy density and long cycle life, and have also been promoted in fields such as electric vehicles. But now the requirements for the application of various material systems are getting higher and higher. In addition to higher requirements for battery energy density and cycle life, consumers must also take into account the power characteristics of batteries and the applicability of high and low temperature environments. Therefore, the current battery design needs to change its thinking and improve from the perspective of battery cell design and material system, so as to meet the needs of end products. Among them,...

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): H01M4/62H01M4/13H01M4/139H01M10/0525
CPCH01M4/13H01M4/139H01M4/624H01M10/0525Y02E60/10
Inventor 占克军王恒李晓玲
Owner 东莞维科电池有限公司
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