Nanoscaled Lithium Powders with Protection of Ionic Liquid for Highly Stable Rechargeable Lithium Metal Batteries
Nanoscaled Lithium Powders with Protection of Ionic Liquid for Highly Stable Rechargeable Lithium Metal Batteries
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具有离子液体保护的纳米级锂粉用于高稳定性可充电锂金属电池
DOI:
10.1002/advs.201901776
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发表时间:
2019-10
期刊:
影响因子:
15.1
通讯作者:
Liu Yongfeng
中科院分区:
文献类型:
--
作者:
Pu Kaichao;Qu Xiaolei;Zhang Xin;Hu Jianjiang;Gu Changdong;Wu Yongjun;Gao Mingxia;Pan Hongge;Liu Yongfeng
To suppress the dendrite formation and alleviate volume expansion upon striping/platting is a key challenge for developing practical lithium metal anodes. Lithium metal in powder form possesses great potential to address this issue due to large specific surface area. However, the fabrication of powdery metallic lithium is largely restricted because of its unique softness, stickiness, and high reactivity. Here, a safe and readily accessible cryomilling process toward lithium powders is reported. Nanoscaled lithium powders (<500 nm) are successfully prepared from lithium foils with the assistance of a high‐melting‐point ionic liquid under cryogenic temperature. The prepared lithium powder anode exhibits superior electrochemical properties in symmetric cells, including extraordinarily low yet stable overpotential (≈50 mV), ultrahigh area capacity (30 mAh cm−2), and good long‐term cyclability (1200 h) even cycling at high current density (10 mA cm−2). The powdery form of lithium also functions as a favorable prelithiation reagent for lithium‐free anodes (e.g., Si, SiO, and SnO2). The findings open up a new avenue for the real‐world application of lithium metal anodes for next‐generation lithium batteries.
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影响因子:
15.1
作者:
Zeng, Ziqi;Jiang, Xiaoyu;Li, Ran;Yuan, Dingding;Ai, Xinping;Yang, Hanxi;Cao, Yuliang
通讯作者:
Cao, Yuliang
影响因子:
19
作者:
Xue‐Qiang Zhang;Xin‐Bing Cheng;Xiang Chen;Chong Yan;Qiang Zhang
通讯作者:
Xue‐Qiang Zhang;Xin‐Bing Cheng;Xiang Chen;Chong Yan;Qiang Zhang
影响因子:
19
作者:
Qiu, Hailong;Tang, Tianyu;Hou, Yanglong
通讯作者:
Hou, Yanglong
DOI:
10.1073/pnas.1518188113
发表时间:
2016-03-15
影响因子:
11.1
作者:
Liang, Zheng;Lin, Dingchang;Cui, Yi
通讯作者:
Cui, Yi
DOI:
10.1002/advs.201600400
发表时间:
2017-02
期刊:
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子:
--
作者:
Li NW;Yin YX;Li JY;Zhang CH;Guo YG
通讯作者:
Guo YG