Research output: Contribution to journal › Article › peer-review
Impedance of LiFe0.4Mn0.6PO4 Electrodes with Combined Conducting Polymer Binder of PEDOT:PSS and Carboxymethyl Cellulose. / Apraksin, R. V. ; Eliseeva, S. N. ; Kamenskii, M. A. ; Tolstopyatova, E. G. ; Lang, G. G. ; Kondrat’ev, V. V. .
In: Russian Journal of Electrochemistry, Vol. 55, No. 11, 01.11.2019, p. 1047-1057.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Impedance of LiFe0.4Mn0.6PO4 Electrodes with Combined Conducting Polymer Binder of PEDOT:PSS and Carboxymethyl Cellulose
AU - Apraksin, R. V.
AU - Eliseeva, S. N.
AU - Kamenskii, M. A.
AU - Tolstopyatova, E. G.
AU - Lang, G. G.
AU - Kondrat’ev, V. V.
N1 - Apraksin, R.V., Eliseeva, S.N., Kamenskii, M.A. et al. Impedance of LiFe0.4Mn0.6PO4 Electrodes with Combined Conducting Polymer Binder of PEDOT:PSS and Carboxymethyl Cellulose. Russ J Electrochem 55, 1047–1057 (2019). https://doi.org/10.1134/S1023193519110028
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Abstract: This work studies the electrochemical properties of cathodic materials for lithium–ion batteries based on mixed lithium–iron–manganese phosphate LiFe 0.4Mn 0.6PO 4 (LFMP) obtained using a conducting binder containing poly-3,4-ethylenedioxythiophene : polystyrenesulfonate (PEDOT:PSS) and carboxymethyl cellulose (CMC). The results are compared with those for the material based on LiFe 0.4Mn 0.6PO 4 manufactured with the conventional polyvinylidene fluoride (PVDF) binder. The electrode material with the PEDOT:PSS/CMC binder manifests enhanced functional characteristics as compared to electrodes with the conventional binder. It is found that replacement of the conventional binder by the combined conducting PEDOT:PSS/CMC binder in the LFMP-based cathodic material results in an increase in the specific capacity of the cathodic material. Particularly noticeable advantages of the material with respect to specific capacity are observed at high currents (up to 10 C), which can be explained by the increasing rate of the processes of material recharge due to a significant decrease in the charge transfer resistance and an increase in the apparent diffusion coefficient of the lithium ions.
AB - Abstract: This work studies the electrochemical properties of cathodic materials for lithium–ion batteries based on mixed lithium–iron–manganese phosphate LiFe 0.4Mn 0.6PO 4 (LFMP) obtained using a conducting binder containing poly-3,4-ethylenedioxythiophene : polystyrenesulfonate (PEDOT:PSS) and carboxymethyl cellulose (CMC). The results are compared with those for the material based on LiFe 0.4Mn 0.6PO 4 manufactured with the conventional polyvinylidene fluoride (PVDF) binder. The electrode material with the PEDOT:PSS/CMC binder manifests enhanced functional characteristics as compared to electrodes with the conventional binder. It is found that replacement of the conventional binder by the combined conducting PEDOT:PSS/CMC binder in the LFMP-based cathodic material results in an increase in the specific capacity of the cathodic material. Particularly noticeable advantages of the material with respect to specific capacity are observed at high currents (up to 10 C), which can be explained by the increasing rate of the processes of material recharge due to a significant decrease in the charge transfer resistance and an increase in the apparent diffusion coefficient of the lithium ions.
KW - PEDOT:PSS
KW - binder material
KW - carboxymethyl cellulose
KW - conducting polymer
KW - cyclic voltammetry
KW - electrochemical impedance spectroscopy
KW - lithium–ion batteries
KW - lithium–iron–manganese phosphate
UR - http://www.scopus.com/inward/record.url?scp=85076341260&partnerID=8YFLogxK
U2 - 10.1134/S1023193519110028
DO - 10.1134/S1023193519110028
M3 - Article
VL - 55
SP - 1047
EP - 1057
JO - Russian Journal of Electrochemistry
JF - Russian Journal of Electrochemistry
SN - 1023-1935
IS - 11
ER -
ID: 49628317