Potassium-Based Dual Ion Battery with Dual-Graphite Electrode

被引：180

作者：

Fan, Ling ^{[1
]}

Liu, Qian ^{[1
]}

Chen, Suhua ^{[1
]}

Lin, Kairui ^{[2
]}

Xu, Zhi ^{[3
]}

Lu, Bingan ^{[1
,3
]}

机构：

[1] Hunan Univ, Sch Phys & Elect, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China

[2] Quanzhou Number Fifth High Sch ChengDong, Quanzhou 362000, Peoples R China

[3] Fujian Strait Res Inst Ind Graphene Technol, Jinjiang 362200, Peoples R China

来源：

SMALL | 2017年 / 13卷 / 30期

基金：

中国国家自然科学基金;

关键词：

HIGH-CAPACITY; BIS(TRIFLUOROMETHANESULFONYL)IMIDE ANIONS; ELECTROCHEMICAL INTERCALATION; ENERGY; GRAPHENE; CATHODE; LITHIUM; SULFUR; ANODE;

D O I：

10.1002/smll.201701011

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A potassium ion battery has potential applications for large scale electric energy storage systems due to the abundance and low cost of potassium resources. Dual graphite batteries, with graphite as both anode and cathode, eliminate the use of transition metal compounds and greatly lower the overall cost. Herein, combining the merits of the potassium ion battery and dual graphite battery, a potassium-based dual ion battery with dual-graphite electrode is developed. It delivers a reversible capacity of 62 mA h g(-1) and medium discharge voltage of approximate to 3.96 V. The intercalation/deintercalation mechanism of K+ and PF6- into/from graphite is proposed and discussed in detail, with various characterizations to support.

引用

页数：7

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