Emerging Two-Dimensional Covalent and Coordination Polymers for Stable Lithium Metal Batteries: From Liquid to Solid

ACS Nano ◽  
2021 ◽  
Author(s):  
Jiwei Wang ◽  
Kaixi Wang ◽  
Yuxi Xu
2021 ◽  
Vol MA2021-02 (1) ◽  
pp. 176-176
Author(s):  
Taejin Jang ◽  
Lubhani Mishra ◽  
Krishna Shah ◽  
Akshay Subramaniam ◽  
Maitri Uppaluri ◽  
...  

Author(s):  
Jiachen Ma ◽  
Ruge Quhe ◽  
Zheyu Zhang ◽  
Chen Yang ◽  
Xiuying Zhang ◽  
...  

An efficient screening procedure for two-dimensional (2D) solid-electrolyte interphases (SEIs) is designed. In the concrete case, the two selected 2D SEIs (h-BN and α-BNyne) do stabilize the interface between the solid-state electrolyte Li10GeP2S12 and the lithium metal anode, blocking the electron transfer and maintaining the Li-ion flow.


2021 ◽  
Vol 104 (1) ◽  
pp. 131-152
Author(s):  
Taejin Jang ◽  
Lubhani Mishra ◽  
Krishna Shah ◽  
Akshay Subramaniam ◽  
Maitri Uppaluri ◽  
...  

ACS Nano ◽  
2020 ◽  
Vol 14 (12) ◽  
pp. 17574-17588
Author(s):  
Yongling An ◽  
Yuan Tian ◽  
Yuchan Zhang ◽  
Chuanliang Wei ◽  
Liwen Tan ◽  
...  

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2468
Author(s):  
Hui Zhan ◽  
Mengjun Wu ◽  
Rui Wang ◽  
Shuohao Wu ◽  
Hao Li ◽  
...  

Composite polymer electrolytes (CPEs) incorporate the advantages of solid polymer electrolytes (SPEs) and inorganic solid electrolytes (ISEs), which have shown huge potential in the application of safe lithium-metal batteries (LMBs). Effectively avoiding the agglomeration of inorganic fillers in the polymer matrix during the organic–inorganic mixing process is very important for the properties of the composite electrolyte. Herein, a partial cross-linked PEO-based CPE was prepared by porous vinyl-functionalized silicon (p-V-SiO2) nanoparticles as fillers and poly (ethylene glycol diacrylate) (PEGDA) as cross-linkers. By combining the mechanical rigidity of ceramic fillers and the flexibility of PEO, the as-made electrolyte membranes had excellent mechanical properties. The big special surface area and pore volume of nanoparticles inhibited PEO recrystallization and promoted the dissolution of lithium salt. Chemical bonding improved the interfacial compatibility between organic and inorganic materials and facilitated the homogenization of lithium-ion flow. As a result, the symmetric Li|CPE|Li cells could operate stably over 450 h without a short circuit. All solid Li|LiFePO4 batteries were constructed with this composite electrolyte and showed excellent rate and cycling performances. The first discharge-specific capacity of the assembled battery was 155.1 mA h g−1, and the capacity retention was 91% after operating for 300 cycles at 0.5 C. These results demonstrated that the chemical grafting of porous inorganic materials and cross-linking polymerization can greatly improve the properties of CPEs.


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