Electrical Conductivity Gradient Based on Heterofibrous Scaffolds for Stable Lithium‐Metal Batteries

2020 ◽  
Vol 30 (14) ◽  
pp. 1908868 ◽  
Author(s):  
Sang‐Ho Hong ◽  
Dae‐Han Jung ◽  
Jung‐Hwan Kim ◽  
Yong‐Hyeok Lee ◽  
Sung‐Ju Cho ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Gradient Based ◽  
Conductivity Gradient

scholarly journals Excellent Performances of Composite Polymer Electrolytes with Porous Vinyl-Functionalized SiO2 Nanoparticles for Lithium Metal Batteries

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2468
Author(s):  
Hui Zhan ◽  
Mengjun Wu ◽  
Rui Wang ◽  
Shuohao Wu ◽  
Hao Li ◽  
...  
Keyword(s):  
Polymer Electrolytes ◽  
Specific Capacity ◽  
Sio2 Nanoparticles ◽  
Inorganic Materials ◽  
Solid Polymer Electrolytes ◽  
Lithium Metal ◽  
Composite Polymer ◽  
Composite Electrolyte ◽  
Composite Polymer Electrolytes ◽  
Lithium Metal Batteries

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.

Lithiophilic N-doped carbon bowls induced Li deposition in layered graphene film for advanced lithium metal batteries

Nano Research ◽  
2021 ◽  
Author(s):  
Xiaoyu Feng ◽  
Hong-Hui Wu ◽  
Biao Gao ◽  
Michał Świętosławski ◽  
Xin He ◽  
...  
Keyword(s):  
Graphene Film ◽  
Lithium Metal ◽  
Lithium Metal Batteries

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

2021 ◽  
pp. 2009694
Author(s):  
Kaiqiang Qin ◽  
Kathryn Holguin ◽  
Motahareh Mohammadiroudbari ◽  
Jinghao Huang ◽  
Eric Young Sam Kim ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Metal ◽  
Lithium Metal Batteries

Flame-retardant single-ion conducting polymer electrolytes based on anion acceptors for high-safety lithium metal batteries

2021 ◽  
Author(s):  
Kuirong Deng ◽  
Tianyu Guan ◽  
Fuhui Liang ◽  
Xiaoqiong Zheng ◽  
Qingguang Zeng ◽  
...  
Keyword(s):  
Solid State ◽  
Flame Retardant ◽  
Conducting Polymer ◽  
Polymer Electrolytes ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Lithium Metal Anodes ◽  
Ion Conducting ◽  
Ion Conducting Polymer ◽  
Metal Anodes

Solid-state lithium metal batteries (LMBs) assembled with polymer electrolytes (PEs) and lithium metal anodes are promising batteries owing to their enhanced safeties and ultrahigh theoretical energy densities. Nevertheless, polymer electrolytes...

Double-Layered Multifunctional Composite Electrolytes for High-Voltage Solid-State Lithium-Metal Batteries

2021 ◽  
Vol 13 (10) ◽  
pp. 11958-11967
Author(s):  
Zhongran Yao ◽  
Kongjun Zhu ◽  
Xia Li ◽  
Jie Zhang ◽  
Jun Li ◽  
...  
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Lithium Metal ◽  
Composite Electrolytes ◽  
Lithium Metal Batteries
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