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

Heterojunction nano material, lithium ion battery negative electrode pole piece and lithium ion battery

A technology of lithium-ion batteries and nanomaterials, applied in the field of rechargeable lithium-ion batteries, can solve the problems of low reversible specific capacity and cycle stability, and achieve the effect of improving reversible specific capacity, regular shape, and cycle stability

Inactive Publication Date: 2014-11-12
HUAWEI TECH CO LTD
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Although this technical solution improves the reversible specific capacity and cycle stability of lithium-ion batteries to a certain extent, its reversible specific capacity and cycle stability are still not high.

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
  • Heterojunction nano material, lithium ion battery negative electrode pole piece and lithium ion battery
  • Heterojunction nano material, lithium ion battery negative electrode pole piece and lithium ion battery
  • Heterojunction nano material, lithium ion battery negative electrode pole piece and lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] figure 1 The flow chart of the method for preparing MoO3 nanoribbons provided by the embodiment of the present invention. Such as figure 1 Shown, the method for preparing MoO3 nanoribbon comprises:

[0032] Step 11, completely dissolving ammonium molybdate in deionized water to obtain a mixed solution. For example, completely dissolve 0...

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 heterojunction nano material, a lithium ion battery negative electrode pole piece and a lithium ion battery. The heterojunction nano material comprises a MoO3 nano belt and a metal oxide in an alloy type lithium intercalation mechanism, which coats the MoO3 nano belt. The lithium ion battery negative electrode pole piece adopts the heterojunction nano material as an active material; and the lithium ion battery adopting the lithium ion battery negative electrode pole piece has a high reversible specific capacity and high cycling stability.

Description

[0001] This application is a divisional application of the invention application with application number 201210028855.6 submitted on February 9, 2012. technical field [0002] The invention relates to rechargeable lithium ion battery technology, in particular to a method for preparing MoO 3 Nanoribbon method, MoO 3 Nanobelts, heterojunction nanomaterials, lithium-ion battery negative electrodes and lithium-ion batteries. Background technique [0003] Lithium-ion batteries have become the most important power sources for portable electronics and electric vehicles due to their high energy density and long cycle life. [0004] Generally, the anode material of commercial lithium-ion batteries is graphite material, because graphite material has high cycle stability in the process of lithium intercalation and extraction. [0005] However, graphite materials also encounter many problems in practical applications. For example, the theoretical capacity of graphite materials is only...

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): H01M4/48B82Y30/00B82Y40/00H01M4/1391
CPCH01M4/131H01M4/366H01M4/48H01M10/0525Y02E60/10
Inventor 王兴杰
Owner HUAWEI TECH CO LTD