skip to main content

DOE PAGESDOE PAGES

Title: Development of Lithium Dimethyl Phosphate as an Electrolyte Additive for Lithium Ion Batteries

The novel electrolyte additive lithium dimethyl phosphate (LiDMP) has been synthesized and characterized. Incorporation of LiDMP (0.1% wt) into LiPF 6 in ethylene carbonate (EC) / ethyl methyl carbonate (EMC) (3:7 wt) results in improved rate performance and reduced impedance for graphite / LiNi 1/3Mn 1/3Co 1/3O 2 cells. Ex-situ surface analysis of the electrodes suggests that incorporation of LiDMP results in a modification of the solid electrolyte interphase (SEI) on the anode. A decrease in the concentration of lithium alkyl carbonates and an increase in the concentration of lithium fluoro phosphates are observed. The change in the anode SEI structure is responsible for the increased rate performance and decreased cell impedance.
Authors:
 [1] ;  [1] ;  [2] ;  [2] ;  [1]
  1. Univ. of Rhode Island, Kingston, RI (United States). Department of Chemistry
  2. Battery R&D Center, Samsung SDI, Yeongtong-gu, Suwon-si (South Korea)
Publication Date:
Grant/Contract Number:
SC0007074
Type:
Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 163; Journal Issue: 7; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Research Org:
Univ. of Rhode Island, Kingston, RI (United States). Department of Chemistry
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; Additives; Electrolyte; Solid Electrolyte Interphase
OSTI Identifier:
1437261

Milien, Mickdy S., Tottempudi, Usha, Son, Miyoung, Ue, Makoto, and Lucht, Brett L.. Development of Lithium Dimethyl Phosphate as an Electrolyte Additive for Lithium Ion Batteries. United States: N. p., Web. doi:10.1149/2.1131607jes.
Milien, Mickdy S., Tottempudi, Usha, Son, Miyoung, Ue, Makoto, & Lucht, Brett L.. Development of Lithium Dimethyl Phosphate as an Electrolyte Additive for Lithium Ion Batteries. United States. doi:10.1149/2.1131607jes.
Milien, Mickdy S., Tottempudi, Usha, Son, Miyoung, Ue, Makoto, and Lucht, Brett L.. 2016. "Development of Lithium Dimethyl Phosphate as an Electrolyte Additive for Lithium Ion Batteries". United States. doi:10.1149/2.1131607jes. https://www.osti.gov/servlets/purl/1437261.
@article{osti_1437261,
title = {Development of Lithium Dimethyl Phosphate as an Electrolyte Additive for Lithium Ion Batteries},
author = {Milien, Mickdy S. and Tottempudi, Usha and Son, Miyoung and Ue, Makoto and Lucht, Brett L.},
abstractNote = {The novel electrolyte additive lithium dimethyl phosphate (LiDMP) has been synthesized and characterized. Incorporation of LiDMP (0.1% wt) into LiPF6 in ethylene carbonate (EC) / ethyl methyl carbonate (EMC) (3:7 wt) results in improved rate performance and reduced impedance for graphite / LiNi1/3Mn1/3Co1/3O2 cells. Ex-situ surface analysis of the electrodes suggests that incorporation of LiDMP results in a modification of the solid electrolyte interphase (SEI) on the anode. A decrease in the concentration of lithium alkyl carbonates and an increase in the concentration of lithium fluoro phosphates are observed. The change in the anode SEI structure is responsible for the increased rate performance and decreased cell impedance.},
doi = {10.1149/2.1131607jes},
journal = {Journal of the Electrochemical Society},
number = 7,
volume = 163,
place = {United States},
year = {2016},
month = {4}
}