Electrolyte systems for primary lithium-fluorocarbon power sources and their working efficiency in a wide temperature range
- Authors: Ignatova A.A.1, Tulibaeva G.Z.1, Yarmolenko O.V.1, Fateev S.A.2
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Affiliations:
- Institute of Problems of Chemical Physics
- Alfa Plus Regional Consultation and Technical Center of Independent Current Sources
- Issue: Vol 53, No 3 (2017)
- Pages: 292-301
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/188562
- DOI: https://doi.org/10.1134/S1023193517030077
- ID: 188562
Cite item
Abstract
New compositions of liquid organic electrolytes with working temperatures of up to–50°С were developed for low-temperature primary Li/CFx power sources. Five different compositions of organic electrolytes with a 15-crown-5 (2 vol %) addition and without it were studied on laboratory Li/CFx power sources. 1МLiBF4 (LiPF6) in an ethylene carbonate/dimethyl carbonate/methyl propionate/ethylmethyl carbonate (EC/DMC/MP/EMC) (1: 1: 1: 2) mixture and 1 М LiPF6 in an EC/DMC/EMC (1: 1: 3) mixture each with a 15-crown-5 (2 vol %) addition were found to be the best compositions of organic electrolytes with working temperatures of up to–50°С. The electrochemical tests at 20 and–50°С in the Li/CFx system showed that the 15-crown-5 addition increased the length of the discharge plateau at–50°С three- or fourfold. The mechanisms responsible for the increase in the discharge capacity of the CFx cathode in the presence of a crown ether addition were suggested.
About the authors
A. A. Ignatova
Institute of Problems of Chemical Physics
Author for correspondence.
Email: anna.elchem@gmail.com
Russian Federation, Chernogolovka, Moscow oblast, 142432
G. Z. Tulibaeva
Institute of Problems of Chemical Physics
Email: anna.elchem@gmail.com
Russian Federation, Chernogolovka, Moscow oblast, 142432
O. V. Yarmolenko
Institute of Problems of Chemical Physics
Email: anna.elchem@gmail.com
Russian Federation, Chernogolovka, Moscow oblast, 142432
S. A. Fateev
Alfa Plus Regional Consultation and Technical Center of Independent Current Sources
Email: anna.elchem@gmail.com
Russian Federation, Moscow, 105094