Preventing lithium dendrite-related electrical shorting in rechargeable batteries by coating separator with a Li-killing additive

2018 ◽  
Vol 6 (23) ◽  
pp. 10755-10760 ◽  
Author(s):  
Sheng S. Zhang ◽  
Xiulin Fan ◽  
Chunsheng Wang
Keyword(s):  
Polymer Electrolyte ◽  
Gel Polymer Electrolyte ◽  
Rechargeable Batteries ◽  
Composite Gel ◽  
Lithium Dendrite

A separator having one side coated with TiO2–Kynar composite effectively prevents Li dendrite-related electrical shorting while still providing all the benefits of a composite gel polymer electrolyte.

An acetylene black modified gel polymer electrolyte for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (22) ◽  
pp. 13679-13686 ◽  
Author(s):  
Dezhi Yang ◽  
Liang He ◽  
Yu Liu ◽  
Wenqi Yan ◽  
Shishuo Liang ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
High Performance ◽  
Gel Polymer Electrolyte ◽  
Dendrite Growth ◽  
Acetylene Black ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Dendrite ◽  
Lithium Sulfur

An acetylene black modified gel polymer electrolyte was prepared to simultaneously solve the problems of shuttle effect and lithium dendrite growth for high-performance Li–S batteries.

A novel PVdF-based composite gel polymer electrolyte doped with ionomer modified graphene oxide

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97338-97345 ◽  
Author(s):  
Weili Li ◽  
Zhengbao Zhu ◽  
Wenjun Shen ◽  
Jijun Tang ◽  
Gang Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Phase Separation ◽  
Polymer Electrolyte ◽  
Gel Polymer Electrolyte ◽  
Separation Technique ◽  
Conducting Channel ◽  
Composite Gel ◽  
Modified Graphene Oxide ◽  
Ion Conducting ◽  
Modified Graphene

A novel composite gel polymer electrolyte (CGPE) was prepared by doping ionomer-modified-graphene (IMGO) into poly(vinylidenefluoride) with a phase separation technique. IMGO can enhance the properties of CGPE due to the effect of the ion-conducting channel.

Poly(vinylidenefluoride-co-hexafluoropropylene): An Emerging Host Material for Ion Conducting Gel Polymer Electrolyte-Cum-Separator Membrane

2020 ◽  
Vol 12 (1) ◽  
pp. 50-59
Author(s):  
Shivani Gupta ◽  
Sarvesh Kumar Gupta ◽  
B. K. Pandey ◽  
A. K. Gupta
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Rational Design ◽  
Vinylidene Fluoride ◽  
Storage System ◽  
Gel Polymer Electrolyte ◽  
Rechargeable Batteries ◽  
Safety Issues ◽  
Ion Conducting ◽  
High Dielectric

Secondary batteries based on ion conduction are among the most promising technology for next generation mobile and stationary storage system due to their unmatched volumetric energy density. However the multiple emerging challenges which include electrochemical stability, transport efficiency and safety issues of these secondary batteries have attracted worldwide attention. The perspective of this review is that rational design of polymeric separator which is an essential component in rechargeable batteries separating anode and cathode, and controlling number of mobile ions is crucial to overall battery performance, including lifetime, safety as well as energy and power density of battery. There is impressive progress in the exploration of separator materials. Among them, poly(vinylidene fluoride-co-hexafluoropropylene) P(VdF-co-HFP) have received great attention as polymer host due to some its splendid collective property such as its amorphous nature, high room temperature ionic conductivity, high dielectric constant and the possibility of controlling the porosity of the materials through binary and ternary polymer/solvent systems. This review focuses specifically on recent advances in P(VdF-co-HFP) based separator cum gel polymer electrolyte with detailed analysis of several embedded functional agent that are incorporated to improve ionic conductivity, mechanical robustness and thermal stability of rechargeable batteries.

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