Molecular Analysis of Li Ion Transport Characteristics in Polymer Electrolytes of All Solid-State Lithium Ion Battery

2020 ◽  
Vol MA2020-02 (68) ◽  
pp. 3492-3492
Author(s):  
Koki Nakajima ◽  
Takashi Tokumasu ◽  
Takuya Mabuchi
Micromachines ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1012
Author(s):  
Takuya Mabuchi ◽  
Koki Nakajima ◽  
Takashi Tokumasu

Atomistic analysis of the ion transport in polymer electrolytes for all-solid-state Li-ion batteries was performed using molecular dynamics simulations to investigate the relationship between Li-ion transport and polymer morphology. Polyethylene oxide (PEO) and poly(diethylene oxide-alt-oxymethylene), P(2EO-MO), were used as the electrolyte materials, and the effects of salt concentrations and polymer types on the ion transport properties were explored. The size and number of LiTFSI clusters were found to increase with increasing salt concentrations, leading to a decrease in ion diffusivity at high salt concentrations. The Li-ion transport mechanisms were further analyzed by calculating the inter/intra-hopping rate and distance at various ion concentrations in PEO and P(2EO-MO) polymers. While the balance between the rate and distance of inter-hopping was comparable for both PEO and P(2EO-MO), the intra-hopping rate and distance were found to be higher in PEO than in P(2EO-MO), leading to a higher diffusivity in PEO. The results of this study provide insights into the correlation between the nanoscopic structures of ion solvation and the dynamics of Li-ion transport in polymer electrolytes.


2020 ◽  
Vol 53 (22) ◽  
pp. 10078-10085
Author(s):  
Xiaobin Fu ◽  
Yiyang Liu ◽  
Wei Wang ◽  
Ling Han ◽  
Jing Yang ◽  
...  

2019 ◽  
Vol 7 (45) ◽  
pp. 25818-25823 ◽  
Author(s):  
Zhongke Zhao ◽  
Yingmeng Zhang ◽  
Shaojun Li ◽  
Suhang Wang ◽  
Yongliang Li ◽  
...  

A novel solid polymer electrolyte was designed and synthesized based on a hybrid copolymer matrices grafting with lithium carboxylate branched chains, which ensures a homogeneous Li ion deposition and successfully inhibits the Li dendrite growth.


2014 ◽  
Vol 2 (34) ◽  
pp. 13873-13883 ◽  
Author(s):  
Jimin Shim ◽  
Dong-Gyun Kim ◽  
Hee Joong Kim ◽  
Jin Hong Lee ◽  
Ji-Hoon Baik ◽  
...  

A series of composite polymer electrolytes containing poly(ethylene glycol)-grafted graphene oxide fillers were prepared for all-solid-state lithium-ion battery applications.


2021 ◽  
Vol 505 ◽  
pp. 229917
Author(s):  
Jiwon Yu ◽  
Myungsuk Lee ◽  
Yeonseo Kim ◽  
Hyung-Kyu Lim ◽  
Jonghyun Chae ◽  
...  

2015 ◽  
Vol 51 (81) ◽  
pp. 15035-15038 ◽  
Author(s):  
Prerna Joshi ◽  
Raman Vedarajan ◽  
Noriyoshi Matsumi

We report the synthesis of a crystalline cyclic organoboron compound that shows an anomalous Li-ion conduction behaviour with specific composition and method of insertion of a Li salt.


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