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Engineering Fast Ion Conduction and Selective Cation Channels for a High‐Rate and High‐Voltage Hybrid Aqueous Battery
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-04-17 , DOI: 10.1002/anie.201800479 Chunyi Liu 1 , Xusheng Wang 2, 3 , Wenjun Deng 1 , Chang Li 1 , Jitao Chen 3 , Mianqi Xue 1, 4 , Rui Li 1 , Feng Pan 1
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-04-17 , DOI: 10.1002/anie.201800479 Chunyi Liu 1 , Xusheng Wang 2, 3 , Wenjun Deng 1 , Chang Li 1 , Jitao Chen 3 , Mianqi Xue 1, 4 , Rui Li 1 , Feng Pan 1
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The rechargeable aqueous metal‐ion battery (RAMB) has attracted considerable attention due to its safety, low costs, and environmental friendliness. Yet the poor‐performance electrode materials lead to a low feasibility of practical application. A hybrid aqueous battery (HAB) built from electrode materials with selective cation channels could increase the electrode applicability and thus enlarge the application of RAMB. Herein, we construct a high‐voltage K–Na HAB based on K2FeFe(CN)6 cathode and carbon‐coated NaTi2(PO4)3 (NTP/C) anode. Due to the unique cation selectivity of both materials and ultrafast ion conduction of NTP/C, the hybrid battery delivers a high capacity of 160 mAh g−1 at a 0.5 C rate. Considerable capacity retention of 94.3 % is also obtained after 1000 cycles at even 60 C rate. Meanwhile, high energy density of 69.6 Wh kg−1 based on the total mass of active electrode materials is obtained, which is comparable and even superior to that of the lead acid, Ni/Cd, and Ni/MH batteries.
中文翻译：
为高速率和高电压混合水电池工程化快速离子传导和选择性阳离子通道
水性金属离子可充电电池（RAMB）由于其安全性，低成本和环境友好性而备受关注。然而，性能差的电极材料导致实际应用的可行性较低。由具有选择性阳离子通道的电极材料制成的混合型水性电池（HAB）可以提高电极的适用性，从而扩大RAMB的应用范围。本文中，我们基于K 2 FeFe（CN）6阴极和碳涂层NaTi 2（PO 4）3（NTP / C）阳极构造了高压K-Na HAB 。由于两种材料的独特阳离子选择性和NTP / C的超快离子传导性，混合电池可提供160 mAh g -1的高容量在0.5 C的速率下。即使在60 C的速率下经过1000次循环，也获得了94.3％的显着容量保持率。同时，获得基于活性电极材料的总质量的69.6 Wh kg -1的高能量密度，这与铅酸，Ni / Cd和Ni / MH电池的能量密度相当甚至更好。
更新日期：2018-04-17
中文翻译：
为高速率和高电压混合水电池工程化快速离子传导和选择性阳离子通道
水性金属离子可充电电池（RAMB）由于其安全性，低成本和环境友好性而备受关注。然而，性能差的电极材料导致实际应用的可行性较低。由具有选择性阳离子通道的电极材料制成的混合型水性电池（HAB）可以提高电极的适用性，从而扩大RAMB的应用范围。本文中，我们基于K 2 FeFe（CN）6阴极和碳涂层NaTi 2（PO 4）3（NTP / C）阳极构造了高压K-Na HAB 。由于两种材料的独特阳离子选择性和NTP / C的超快离子传导性，混合电池可提供160 mAh g -1的高容量在0.5 C的速率下。即使在60 C的速率下经过1000次循环，也获得了94.3％的显着容量保持率。同时，获得基于活性电极材料的总质量的69.6 Wh kg -1的高能量密度，这与铅酸，Ni / Cd和Ni / MH电池的能量密度相当甚至更好。
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