Title:
SYMMETRICAL AQUEOUS SODIUM-ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/004259
Kind Code:
A1
Abstract:
The present invention relates to the field of electrochemical energy storage, and in particular, to a symmetrical aqueous sodium ion battery. The electrode material used in a positive electrode material layer and a negative electrode material layer of the battery is NaxMnO2 (x=0.22-0.66). The electrolyte of the battery is an aqueous solution of sodium salt, and the concentration of sodium ions in the electrolyte is 0.5-6 mol•L-1. By selecting NaxMnO2 as the electrode material and setting the concentration of sodium ions in the electrolyte to be 0.5-6 mol•L-1, the symmetrical aqueous sodium-ion battery of the present application has higher energy density which can reach more than 40 Wh/kg.
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Inventors:
XU LI (CN)
SHENG PENG (CN)
LI HUI (CN)
WANG BO (CN)
XUE QING (CN)
ZHAO GUANGYAO (CN)
BAI HUITAO (CN)
CHEN XIN (CN)
SHENG PENG (CN)
LI HUI (CN)
WANG BO (CN)
XUE QING (CN)
ZHAO GUANGYAO (CN)
BAI HUITAO (CN)
CHEN XIN (CN)
Application Number:
PCT/CN2020/097375
Publication Date:
January 14, 2021
Filing Date:
June 22, 2020
Export Citation:
Assignee:
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD (CN)
STATE GRID CORP CHINA (CN)
STATE GRID CORP CHINA (CN)
International Classes:
H01M4/505; H01M10/36
Foreign References:
| CN110380047A | 2019-10-25 | |||
| CN104319424A | 2015-01-28 | |||
| CN109659520A | 2019-04-19 | |||
| CN104900862A | 2015-09-09 | |||
| JP2014120235A | 2014-06-11 | |||
| US20160164105A1 | 2016-06-09 |
Other References:
GAO HONGCAI ET AL.: "An Aqueous Symmetric Sodium-Ion Battery with NASICON-Structured Na3MnTi(PO4)3", ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, vol. 55,, no. 41, 13 September 2016 (2016-09-13), XP055772038, ISSN: 1433-7851, DOI: 20200812181945Y
CHEN, ZHONGXUE ET AL.: "Symmetric Sodium-Ion Capacitor Based on Na0.44MnO2 Nanorods for Low-Cost and High-Performance Energy Storage", ACS APPLIED MATERIALS & INTERFACES, vol. 10, no. 14, 23 March 2018 (2018-03-23), XP055772036, ISSN: 1944-8244, DOI: 20200805110045Y
CHEN, ZHONGXUE ET AL.: "Symmetric Sodium-Ion Capacitor Based on Na0.44MnO2 Nanorods for Low-Cost and High-Performance Energy Storage", ACS APPLIED MATERIALS & INTERFACES, vol. 10, no. 14, 23 March 2018 (2018-03-23), XP055772036, ISSN: 1944-8244, DOI: 20200805110045Y
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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