Patel, Monalisa and Bhattachaiyya, Aninda J (2008) Plastic-polymer composite electrolytes: Novel soft matter electrolytes for rechargeable lithium batteries. In: Electrochemistry Communications, 10 (12). pp. 1912-1915.
fulltext.pdf - Published Version
Restricted to Registered users only
Download (424Kb) | Request a copy
We present here a soft matter solid composite electrolyte obtained by inclusion of a polymer in a semi-solid organic plastic lithium salt electrolyte. Compared to lithium bis-trifluoromethanesulfonimide-succinonitrile (LiTFSI-SN), the (100 - x)%-[LiTFSI-SN]: x%-P (P: polyacrylonitrile (PAN), polyethylene oxide (PEO), polyethylene glycol dimethyl ether (PEG)) composites possess higher ambient temperature ionic conductivity, higher mechanical strength and wider electrochemical window. At 25 Â°C, ionic conductivity of 95%-[0.4 M LiTFSI-SN]: 5%-PAN was 1.3 x 10 -3 omega -1 cm1 which was twice that of LiTFSI-SN. The Young's modulus (Y) increased from Y tends to 0 for LiTFSI-SN to a maximum not, vert, similar1.0 MPa for (100 - x)%-[0.4 M LiTFSI-SN]: x%-PAN samples. The electrochemical voltage window for composites was approximately 5 V (Li/Li+). Excellent galvanostatic charge/discharge cycling performance was obtained with composite electrolytes in Li|LiFePO4 cells without any separator.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Keywords:||Solid composite electrolytes;Plastic crystals;Ionic conductivity;Mechanical property;Rechargeable lithium battery.|
|Department/Centre:||Division of Chemical Sciences > Solid State & Structural Chemistry Unit|
|Date Deposited:||06 Nov 2009 04:10|
|Last Modified:||19 Sep 2010 05:00|
Actions (login required)