NDLI: Preparation of P(AN-MMA) gel electrolyte for Li-ion batteries

Content Provider	Springer Nature Link
Author	Pu, Weihua He, Xiangming Wang, Li Tian, Zheng Jiang, Changyin Wan, Chunrong
Copyright Year	2007
Abstract	Phase inversion technique was used to prepare poly(acrylonitrile-methyl methacrylate) [P(AN-MMA)]-based microporous gel electrolyte with addition of SiO$_{2}$ via in-situ composition for Li-ion batteries. The P(AN-MMA) was synthesized by emulsion polymerization and was dissolved into N,N-dimethylformamide (DMF) to form a uniform solution, while tetraethyl orthosilicate (TEOS) was added into the solution and was hydrolyzed by catalysis of alkali ammonia solution to form SiO$_{2}$. Then the solution was cast onto a glass plate using a doctor blade and exposed to humidified atmosphere produced by ultrasonic humidifier, followed by washing, rinsing, and drying, successively. The gel electrolyte was obtained by putting the P(AN-MMA) microporous membrane in a liquid electrolyte. The gelled microporous membrane sucked with 755 wt% of liquid electrolyte vs the dried membrane. It had a porosity of 70%, about 1∼5 μm of pores, and presented an ionic conductivity of 0.94 × 10$^{−3}$ S/cm at room temperature. Electrochemical stability window of the porous gel polymer electrolyte was determined by running a linear sweep voltammetry. The decomposition voltage of the polymer electrolyte exceeds 4.5 V vs Li. The coin test cell with the microporous gel electrolyte showed a good cycling performance. The discharge capacity retention was above 87% at 0.1 C for 45 cycles.
Starting Page	27
Ending Page	31
Page Count	5
File Format	PDF
ISSN	09477047
Journal	Ionics
Volume Number	14
Issue Number	1
e-ISSN	18620760
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-09-18
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Li-ion batteries Materials preparations Electrochemical Characterizations Polymer electrolytes Ionic conductivities Electrical Power Generation and Transmission Renewable Energy Sources Condensed Matter Physical Chemistry Materials Science Electrochemistry
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering Materials Science Chemical Engineering

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