Constructing a novel and safer energy storing system using a graphite cathode and a MoO3 anode

被引：46

作者：

Gunawardhana, Nanda ^{[1
]}

Park, Gum-Jae ^{[1
]}

Dimov, Nikolay ^{[1
]}

Thapa, Arjun Kumar ^{[2
]}

Nakamura, Hiroyoshi ^{[3
]}

Wang, Hongyu ^{[4
]}

Ishihara, Tatsumi ^{[2
]}

Yoshio, Masaki ^{[1
]}

机构：

[1] Saga Univ, Adv Res Ctr, Saga 8400047, Japan

[2] Kyushu Univ, Dept Appl Chem, Fukuoka 8190395, Japan

[3] Saga Univ, Dept Chem & Appl Chem, Saga 8408502, Japan

[4] Chinese Acad Sci, State Key Lab, Changchun 130022, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 18期

关键词：

Safety of batteries; Graphite cathode; Molybdenum oxide anode; Intercalation/de-intercalation; Pulse polarization; INTERCALATION; ELECTRODE; LIMITS; OXIDE;

D O I：

10.1016/j.jpowsour.2011.04.059

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：

A cell employing a graphite cathode and a molybdenum (VI) oxide (MoO3) anode is investigated as a possible energy storage device. Graphite cathode allows raising the voltage well above the cathode materials of LIBs without causing safety issues. The bottom potential of this anode is 2.0 V vs. Li/Li+, which is well above the lithium plating potential. Pulse polarization experiment reveals that no lithium deposition occurs, which further enhances the safety of the graphite/MoO3 full cell. Charge/discharge mechanism of this system results from intercalation and de-intercalation of the PF6- in the cathode (KS-6) and Li+ in the anode (MoO3). This mechanism is supported by in situ X-ray diffraction data of the graphite/MoO3 cell recorded at various states of charge. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：7886 / 7890

页数：5

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