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

Oxide, method for preparing same, protected positive electrode, electrochemical device, and electrochemical cell

A technology of oxides and compounds, applied in the fields of oxides, preparations, protected positive electrodes, electrochemical devices, and electrochemical batteries, can solve problems such as long-lasting stability issues

Pending Publication Date: 2022-05-13
SAMSUNG ELECTRONICS CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, they can be ignited when exposed to water in the air, causing persistent stability issues

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
  • Oxide, method for preparing same, protected positive electrode, electrochemical device, and electrochemical cell
  • Oxide, method for preparing same, protected positive electrode, electrochemical device, and electrochemical cell
  • Oxide, method for preparing same, protected positive electrode, electrochemical device, and electrochemical cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0272] LiOH as a lithium precursor, Ta as a tantalum precursor 2 o 5 , as phosphorus precursor (NH 4 ) 2 HPO 4 , and Li as a boron precursor 2 B 4 o 7 According to the composition ratio shown in Table 1, it was mixed stoichiometrically. Acetone was added thereto, and it was pulverized and mixed for 2 hours by using a planetary mill including zirconia balls, whereby a precursor mixture was obtained. The amount of acetone is about 100 parts by weight, based on 100 parts by weight of the total weight of the precursors. When preparing the precursor mixture, LiOH was used in an excess of about 10% by weight to pre-compensate losses during the subsequent heat treatment of the precursor mixture.

[0273] The precursor mixture was heated to 600° C. at a heating rate of about 5° C. / minute, and at this temperature, a first heat treatment was performed in an air atmosphere for 8 hours.

[0274] After this process, the first heat-treated powder was subjected to planetary milling ...

Embodiment 2、 Embodiment 3、 Embodiment 5

[0276] Embodiment 2, embodiment 3, embodiment 5, and embodiment 16-18

[0277] Oxide powders were obtained in the same manner as in Example 1, except as follows: when preparing the precursor mixture, the boron precursor Li was changed2 B 4 o 7 amount to obtain oxide powders with the composition in Table 1.

Embodiment 4、 Embodiment 6、 Embodiment 7

[0278] Example 4, Example 6, Example 7, and Example 19

[0279] Oxide powder was obtained in the same manner as in Example 1, except as follows: when preparing the precursor mixture, Sb as an antimony precursor was used 2 o 3 Instead of Li as boron precursor 2 B 4 o 7 , and the amount thereof was controlled stoichiometrically to obtain oxide powders having the compositions shown in Table 1.

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
ionic conductivityaaaaaaaaaa
ionic conductivityaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

Provided are an oxide including a compound represented by Formula 1, a method for preparing the same, a protected positive electrode, an electrochemical device, and an electrochemical cell. Wherein, in Formula 1, M is an element having an oxidation value of + 3, A is an element having an oxidation value of + 4, + 5, or + 6, or a combination thereof, when A is an element having an oxidation value of + 4, a is 1 + y + 2x-z, when A is an element having an oxidation value of + 5, a is 1 + 2x-z, when A is an element having an oxidation value of + 6, a is 1-y + 2x-z, X is a halogen atom or pseudo-halogen, and 0 < = ytt; 0.6, 0 < = xlt; 1, and 0 < = zlt; and x, y and z are 0 at the same time. The formula 1 is LiaTa (2-y) AyP (1-x) MxO (8-z) Xz.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2020-0152287 filed on November 13, 2020 at the Korean Intellectual Property Office, and all rights arising therefrom, the contents of which are incorporated herein by reference in their entirety. technical field [0003] The present disclosure relates to oxides, methods of preparing the same, solid electrolytes including the oxides, and electrochemical devices (devices) including the oxides. Background technique [0004] Lithium secondary batteries have large electrochemical capacity, high operating potential, and excellent cycle characteristics, and are therefore widely used in applications including portable information terminals, portable electronic devices, small household power storage devices, motorcycles, electric vehicles, and hybrid electric vehicles. The demand for it in automotive applications is increasing. With the spread of such applica...

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): H01M4/48H01M4/131H01M4/1391H01M10/0525
CPCH01M4/48H01M4/131H01M4/1391H01M10/0525C01B25/45H01M10/0562H01M4/133H01M4/382H01M4/587H01M2300/0071H01M4/667H01M4/661H01M4/364Y02E60/10Y02P70/50
Inventor 金呤希尹钾仁金柱植
Owner SAMSUNG ELECTRONICS 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