Electochemical characteristics of LiMn2O4/Li4Ti5O12 battery with conducting polymeric binder

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Abstract

Lithium-ion battery based on LiMn2O4/Li4Ti5O12 materials was assembled for the first time. The cathode and anode of this battery are prepared with the aqueous combined binder poly-3,4-ethylenedioxythiophene: polystyrene sulfonate/carboxymethylcellulose (without polyvinylidene fluoride). The capacity of the LiMn2O4/Li4Ti5O12 battery was found to be 75 mA h g–1 at 0.1 C and 55 mA h g–1 at 1 C. A 95% capacity was retained after 100 charge-discharge cycles. The batteries demonstrated a high Coulombic efficiency close to 100%. Scanning electron microscopy demonstrated that using the conducting binder poly-3,4-ethylenedioxythiophene: polystyrene sulfonate/carboxymethylcellulose provides formation of dense compact layers of electrode materials with good adhesion to the substrate. The electrode structure remains maintained after 100 charge-discharge cycles.

About the authors

S. N. Eliseeva

Institute of Chemistry

Author for correspondence.
Email: svetlana.eliseeva@spbu.ru
Russian Federation, Universitetskaya nab. 7/9, St. Petersburg, 199034

K. A. Vorob’eva

Institute of Chemistry

Email: svetlana.eliseeva@spbu.ru
Russian Federation, Universitetskaya nab. 7/9, St. Petersburg, 199034

E. V. Shkreba

Institute of Chemistry

Email: svetlana.eliseeva@spbu.ru
Russian Federation, Universitetskaya nab. 7/9, St. Petersburg, 199034

R. V. Apraksin

Institute of Chemistry

Email: svetlana.eliseeva@spbu.ru
Russian Federation, Universitetskaya nab. 7/9, St. Petersburg, 199034

V. V. Kondrat’ev

Institute of Chemistry

Email: svetlana.eliseeva@spbu.ru
Russian Federation, Universitetskaya nab. 7/9, St. Petersburg, 199034

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