具有银浓度梯度的亲锂/疏锂三元合金阳极可引导锂均匀沉积。
A lithiophilic/lithiophobic ternary alloy anode with Ag concentration gradients guides uniform Li deposition.
作者信息
Liu Yulu, Li Qingwen, Yao Qiushi, Zhou Xianji, Wang Wenwen, Chen Keju, Zhu Qingquan, He Guang
机构信息
Tianjin Key Laboratory of Advanced Functional Porous Materials, Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
Central Research Institute, Tianneng Co. Ltd, Huzhou 313100, China.
出版信息
Chem Commun (Camb). 2022 Mar 3;58(19):3158-3161. doi: 10.1039/d2cc00123c.
A LiCuAg ternary alloy anode was designed with controlled lithiophilic/lithiophobic gradients to induce bottom-up Li deposition. The inert metal Cu served as a rigid framework that maintains structural stability, while the lithiophilic metal Ag provided abundant Li deposition sites. Such an ultrathin Li-rich composite anode (Li content as low as 10 mA h cm) affords stable cycling over 1200 h.
设计了一种具有可控亲锂/疏锂梯度的LiCuAg三元合金阳极，以诱导自下而上的锂沉积。惰性金属铜作为维持结构稳定性的刚性框架，而亲锂金属银提供了丰富的锂沉积位点。这种超薄富锂复合阳极（锂含量低至10 mA h cm）可实现超过1200小时的稳定循环。
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