Na3V2(PO4)3 as cathode material for hybrid lithium ion batteries

被引：111

作者：

Du, Ke ^{[1
]}

Guo, Hongwei ^{[1
]}

Hu, Guorong ^{[1
]}

Peng, Zhongdong ^{[1
]}

Cao, Yanbing ^{[1
]}

机构：

[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2013年 / 223卷

关键词：

Sodium super ion conductor; Hybrid lithium ion battery; Cathode material; Carbothermal reduction reaction; ELECTROCHEMICAL PROPERTIES; LIFEPO4/C CATHODE; ELECTRO-CATALYSIS; LI3V2(PO4)(3); CELL;

D O I：

10.1016/j.jpowsour.2012.09.069

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Na3V2(PO4)3 of the rhombohedral NASICON structure has been prepared via solid state carbothermal reduction reaction assisted by mechanochemical activation. As a cathode material for hybrid lithium ion batteries, Na3V2(PO4)(3) exhibits an initial specific discharge capacity of 114.2 mAh g(-1) in the voltage range between 2.5 V and 4.6 V, with a long discharge plateau near 3.7 V versus lithium metal. Approximately 3% of the discharge specific capacity is lost over the first 3 cycles at a current rate of 0.1 C. Then, the capacity appears to stabilize with the discharge specific capacity retention of 97.4% over the following 97 cycles. The material also exhibits good rate performance. Reversible capacities of 107.0 mAh g(-1) at a 1 C rate, 100.5 mAh g(-1) at 5 C and 84.4 mAh g(-1) at 10 C have been obtained. The preliminary results prove that Na3V2(PO4)(3) is a new promising material for hybrid lithium ion batteries. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：284 / 288

页数：5

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