Self-assembled hydrated copper coordination compounds as ionic conductors for room temperature solid-state batteries

被引：45

作者：

Zhan, Xiao ^{[1
]}

Li, Miao ^{[1
]}

Zhao, Xiaolin ^{[2
]}

Wang, Yaning ^{[2
]}

Li, Sha ^{[1
]}

Wang, Weiwei ^{[1
]}

Lin, Jiande ^{[1
]}

Nan, Zi-Ang ^{[1
]}

Yan, Jiawei ^{[1
]}

Sun, Zhefei ^{[1
]}

Liu, Haodong ^{[3
]}

Wang, Fei ^{[4
]}

Wan, Jiayu ^{[5
]}

Liu, Jianjun ^{[2
]}

Zhang, Qiaobao ^{[1
,6
]}

Zhang, Li ^{[1
]}

机构：

[1] Xiamen Univ, Collaborat Innovat Ctr Chem Energy Mat iChEM, State Key Lab Phys Chem Solid Surfaces, Tan Kah Kee Innovat Lab,Coll Chem & Chem Engn, Xiamen 361005, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine M, Shanghai 200050, Peoples R China

[3] Univ Calif San Diego, Chem Engn, La Jolla, CA 92093 USA

[4] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

[5] Shanghai Jiao Tong Univ, Global Inst Future Technol, Future Battery Res Ctr, Shanghai 200240, Peoples R China

[6] Xiamen Univ, Shenzhen Res Inst, Shenzhen 518000, Peoples R China

来源：

NATURE COMMUNICATIONS | 2024年 / 15卷 / 01期

基金：

中国国家自然科学基金;

关键词：

TOTAL-ENERGY CALCULATIONS; METAL BATTERIES; LITHIUM; OXIDATION; CHEMISTRY; EFFICIENT; CATALYST; CRYSTAL; CHAINS;

D O I：

10.1038/s41467-024-45372-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

As the core component of solid-state batteries, neither current inorganic solid-state electrolytes nor solid polymer electrolytes can simultaneously possess satisfactory ionic conductivity, electrode compatibility and processability. By incorporating efficient Li+ diffusion channels found in inorganic solid-state electrolytes and polar functional groups present in solid polymer electrolytes, it is conceivable to design inorganic-organic hybrid solid-state electrolytes to achieve true fusion and synergy in performance. Herein, we demonstrate that traditional metal coordination compounds can serve as exceptional Li+ ion conductors at room temperature through rational structural design. Specifically, we synthesize copper maleate hydrate nanoflakes via bottom-up self-assembly featuring highly-ordered 1D channels that are interconnected by Cu2+/Cu+ nodes and maleic acid ligands, alongside rich COO- groups and structural water within the channels. Benefiting from the combination of ion-hopping and coupling-dissociation mechanisms, Li+ ions can preferably transport through these channels rapidly. Thus, the Li+-implanted copper maleate hydrate solid-state electrolytes shows remarkable ionic conductivity (1.17 x 10-4 S cm-1 at room temperature), high Li+ transference number (0.77), and a 4.7 V-wide operating window. More impressively, Li+-implanted copper maleate hydrate solid-state electrolytes are demonstrated to have exceptional compatibility with both cathode and Li anode, enabling long-term stability of more than 800 cycles. This work brings new insight on exploring superior room-temperature ionic conductors based on metal coordination compounds. The design of inorganic-organic hybrid solid-state electrolytes is expected to merge the merits of both inorganic and organic material. Here, the authors craft Li-ion-implanted copper maleate hydrate nanoflakes via a bottom-up self-assembly approach to reveal superior room-temperature Li-ion conductivity.

引用

页数：14