Na-Rich Prussian White Cathodes for Long-Life Sodium-Ion Batteries

被引：91

作者：

Shen, Zhilong ^{[1
]}

Guo, Songhao ^{[2
]}

Liu, Chunli ^{[1
]}

Sun, Yunpo ^{[1
]}

Chen, Zhen ^{[3
]}

Tu, Jian ^{[3
]}

Liu, Shuangyu ^{[4
]}

Cheng, Jipeng ^{[1
]}

Xie, Jian ^{[1
,5
]}

Cao, Gaoshao ^{[5
]}

Zhao, Xinbing ^{[1
,5
]}

机构：

[1] Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Zheda Rd 38, Hangzhou 310027, Peoples R China

[2] Ctr High Pressure Sci & Technol Adv Res HPSTAR, Cailun Rd 1690, Shanghai 201203, Peoples R China

[3] LI FUN Technol Corp Ltd, Chuangye Rd 128, Zhuzhou 412000, Peoples R China

[4] Global Energy Interconnect Res Inst Co Ltd, State Key Lab Adv Transmiss Technol, Binhe Rd 18, Beijing 102211, Peoples R China

[5] Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Zheda Rd 38, Hangzhou 310027, Peoples R China

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2018年 / 6卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Prussian blue analogue; Sodium-ion battery; Cathode material; Sodium manganese hexacyanoferrate; Electrochemical performance; SUPERIOR CATHODE; BLUE ANALOGS; ELECTROCHEMICAL PROPERTIES; STORAGE; OPTIMIZATION; PERFORMANCE; CHEMISTRY; FRAMEWORK;

D O I：

10.1021/acssuschemeng.8b02758

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Prussian blue analogues (PBA) recently have received great interest for promising applications in low-cost sodium-ion batteries (SIBs). However, controlled synthesis of high-performance PBA is still challenging. In this work, a facile precipitation route was used to synthesize Na-rich PBAs with superior electrochemical performance. It was found that two shapes of the products, namely, small irregular particles and large cuboid particles, coexist by adding sodium citrate in the sodium hexacyanoferrate side during the synthesis. The product shows large capacity (144 mAh g(-1) under a 0.1 C rate), good rate performance (115.6 mAh g(-1) under a 1 C rate, 86.6 mAh g(-1) under a 10 C rate), and long-term cycling stability (73.4% retention after 780 cycles under a 0.5 C rate, 72.7% retention after 2100 cycles under a 1 C rate). This work offers a promising route to prepare PBA-based cathode materials for high-performance SIBs.

引用

页码：16121 / 16129

页数：17

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