Electrochemical Zinc Intercalation in Lithium Vanadium Oxide: A High-Capacity Zinc-Ion Battery Cathode

被引：742

作者：

Alfaruqi, Muhammad H. ^{[1
]}

Mathew, Vinod ^{[1
]}

Song, Jinju ^{[1
]}

Kim, Sungjin ^{[1
]}

Islam, Saiful ^{[1
]}

Pham, Duong Tung ^{[1
]}

Jo, Jeonggeun ^{[1
]}

Kim, Seokhun ^{[1
]}

Baboo, Joseph Paul ^{[1
]}

Xiu, Zhiliang ^{[1
]}

Lee, Kug-Seung ^{[2
]}

Sun, Yang-Kook ^{[3
]}

Kim, Jaekook ^{[1
]}

机构：

[1] Chonnam Natl Univ, Dept Mat Sci & Engn, 300 Yongbongdong, Gwangju 500757, South Korea

[2] Pohang Accelerator Lab, Nanoprobe XAFS Beamline, Pohang 790784, South Korea

[3] Hanyang Univ, Energy Storage Convers Lab, Seoul 133791, South Korea

来源：

CHEMISTRY OF MATERIALS | 2017年 / 29卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

PERFORMANCE; INSERTION; CRYSTAL; ELECTRODES; TRANSITION; CHALLENGES; LI1+XV3O8; CHEMISTRY; MECHANISM; BETA-MNO2;

D O I：

10.1021/acs.chemmater.6b05092

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Rechargeable zinc-ion batteries (ZIBs) with high energy densities appear promising to meet the increasing demand for safe and sustainable energy storage devices. 1.5 However, electrode research on this low-cost and green system are faced with stiff challenges of identifying materials that permit divalent ion-intercalation/deintercalation. Herein, we present layered-type LiV3O8 (LVO) as a prospective intercalation cathode for zinc-ion batteries (ZIBs) with high storage capacities. The detailed phase evolution study during Zn intercalation using electrochemistry, in situ XRD, and simulation techniques reveals the large presence of a single-phase domain that proceeds via a stoichiometric ZnLiV3O8 phase to reversible solid-solution ZnyLiV3O8 (y > 1) phase. The unique behavior, which is different from the reaction with lithium, contributes to high specific capacities of 172 mAh g(-1) and amounts to 75% retention of the maximum capacity achieved in 65 cycles with 100% Coulombic efficiency at a current density of 133 mA g(-1). The remarkable performance makes the development of this low-cost and safe battery technology very promising, and this study also offers opportunities to enhance the understanding on electrochemically induced metastable phases for energy storage applications.

引用

页码：1684 / 1694

页数：11

共 44 条

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Electrochemically Induced Structural Transformation in a γ-MnO2 Cathode of a High Capacity Zinc-Ion Battery System [J].