氧化铌
阳极
铌
能量密度
材料科学
水溶液
储能
功率密度
电压
化学工程
功率(物理)
工程物理
化学
电气工程
冶金
热力学
物理
物理化学
工程类
电极
作者
Xiangzhen Zhu,Minglei Mao,Zejing Lin,Jinming Yue,Meiying Li,Tianshi Lv,Anxing Zhou,Yong‐Sheng Hu,Hong Li,Xuejie Huang,Liquan Chen,Liumin Suo
出处
期刊:ACS materials letters
[American Chemical Society]
日期:2022-07-25
卷期号:4 (9): 1574-1583
被引量:8
标识
DOI:10.1021/acsmaterialslett.2c00462
摘要
Intermittent and instantaneous renewable energy is urgently needed to develop intrinsic safe electrical energy storage technology with high power-energy density. Aqueous lithium-ion batteries (ALIBs) are a promising integration due to their nonflammable nature. Nevertheless, restricted by the anode materials, their energy density has a considerable gap from that of their nonaqueous counterparts. Herein, Wadsley-Roth phase niobium-based oxides (M–Nb–O) are attempted for aqueous Li-ion anodes for the first time. By pairing with the representation of the M–Nb–O anode (Zn2Nb34O87), the output voltage, energy density, and power density of ALIBs increased remarkably, and long-term cycle life improved significantly. Individually, the energy-type full cell (NCM811//Zn2Nb34O87) yields high-record density energy (191.5 Wh kg–1) with a high average discharge voltage of ∼2.25 V, and the power-energy type full cell (LiMn2O4//Zn2Nb34O87) exhibits a superior rate capability with a high energy density of 30.0 Wh kg–1 at an ultrahigh powder density of 16 489 W kg–1.
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