Full open-framework batteries for stationary energy storage

被引：153

作者：

Pasta, Mauro ^{[1
]}

Wessells, Colin D. ^{[1
]}

Liu, Nian ^{[1
]}

Nelson, Johanna ^{[2
]}

McDowell, Matthew T. ^{[1
]}

Huggins, Robert A. ^{[1
]}

Toney, Michael F. ^{[2
]}

Cui, Yi ^{[1
,2
]}

机构：

[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[2] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA

来源：

NATURE COMMUNICATIONS | 2014年 / 5卷

基金：

美国国家科学基金会;

关键词：

PRUSSIAN BLUE ANALOGS; LONG CYCLE LIFE; PERFORMANCE-CHARACTERISTICS; ELECTROCHEMICAL REDUCTION; CATHODIC MATERIALS; LITHIUM BATTERIES; THIN-FILMS; ELECTRODES; FABRICATION; INSERTION;

D O I：

10.1038/ncomms4007

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

New types of energy storage are needed in conjunction with the deployment of renewable energy sources and their integration with the electrical grid. We have recently introduced a family of cathodes involving the reversible insertion of cations into materials with the Prussian Blue open-framework crystal structure. Here we report a newly developed manganese hexacyanomanganate open-framework anode that has the same crystal structure. By combining it with the previously reported copper hexacyanoferrate cathode we demonstrate a safe, fast, inexpensive, long-cycle life aqueous electrolyte battery, which involves the insertion of sodium ions. This high rate, high efficiency cell shows a 96.7% round trip energy efficiency when cycled at a 5C rate and an 84.2% energy efficiency at a 50C rate. There is no measurable capacity loss after 1,000 deep-discharge cycles. Bulk quantities of the electrode materials can be produced by a room temperature chemical synthesis from earth-abundant precursors.

引用

页数：9

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