Journal Article10.1021/NL203193Q
Nickel Hexacyanoferrate Nanoparticle Electrodes For Aqueous Sodium and Potassium Ion Batteries
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TL;DR: Here, insertion/extraction of sodium and potassium ions in a low-strain nickel hexacyanoferrate electrode material for at least five thousand deep cycles at high current densities in inexpensive aqueous electrolytes is demonstrated.
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Abstract: The electrical power grid faces a growing need for large-scale energy storage over a wide range of time scales due to costly short-term transients, frequency regulation, and load balancing. The durability, high power, energy efficiency, and low cost needed for grid-scale storage pose substantial challenges for conventional battery technology.(1, 2) Here, we demonstrate insertion/extraction of sodium and potassium ions in a low-strain nickel hexacyanoferrate electrode material for at least five thousand deep cycles at high current densities in inexpensive aqueous electrolytes. Its open-framework structure allows retention of 66% of the initial capacity even at a very high (41.7C) rate. At low current densities, its round trip energy efficiency reaches 99%. This low-cost material is readily synthesized in bulk quantities. The long cycle life, high power, good energy efficiency, safety, and inexpensive production method make nickel hexacyanoferrate an attractive candidate for use in large-scale batteries to ...
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Citations
Enhanced Capacity and Rate Capability of Nitrogen/Oxygen Dual-Doped Hard Carbon in Capacitive Potassium-Ion Storage.
Jinlin Yang,Jinlin Yang,Zhicheng Ju,Zhicheng Ju,Yong Jiang,Zheng Xing,Baojuan Xi,Jinkui Feng,Shenglin Xiong +8 more
TL;DR: Nitrogen/oxygen dual-doped hierarchical porous hard carbon (NOHPHC) is introduced as the anode in KIBs by carbonizing and acidizing the NH2 -MIL-101(Al) precursor to improve the specific capacity and electrochemical performance of potassium-ion batteries.
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Potassium Secondary Batteries.
TL;DR: This mini-review summarizes the current status, opportunities, and future challenges of potassium secondary batteries.
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Phosphorus-Based Alloy Materials for Advanced Potassium-Ion Battery Anode
TL;DR: It was found that the Sn4P3/C electrode displays a discharge potential plateau of 0.1 V in PIBs, slightly higher than for sodium-ion batteries (SIBs) (0.01 V), and well above the plating potential of metal, which diminishes the formation of dendrites during cycling, and thus Sn 4P3 is a relatively safe anode material.
Rechargeable Batteries for Grid Scale Energy Storage.
TL;DR: In this article , the overall requirements of battery technologies for practical applications with key parameters are systematically analyzed by generating standards and measures for grid scale energy storage (GSES), including metal-ion batteries, lead-acid batteries, molten-salt batteries, alkaline batteries, redox-flow batteries, metal-air batteries, and hydrogen-gas batteries.
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Building aqueous K-ion batteries for energy storage
Liwei Jiang,Yaxiang Lu,Chenglong Zhao,Lilu Liu,Jie-Nan Zhang,Qiangqiang Zhang,Xing Shen,Junmei Zhao,Xiqian Yu,Hong Li,Xuejie Huang,Liquan Chen,Yong-Sheng Hu +12 more
TL;DR: Aqueous K-ion batteries (AKIBs) are promising candidates for grid-scale energy storage due to their inherent safety and low cost as discussed by the authors. But full AKIBs have not yet been reported due to the limited availability of suitable electrodes and electrolytes.
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