A new family of anion receptors and their effects on ion pair dissociation and conductivity of lithium salts in non-aqueous solutions
- Brookhaven National Lab., Upton, NY (United States)
- Polytechnic Univ., Brooklyn, NY (United States)
A new family of anion receptors based on aza-ether compounds have been synthesized. Since the anion complexation of these compounds is not based on either positively charged sites or hydrogen bonding, they have a potential to be used in lithium batteries as electrolyte additives. When these compounds are added into nonaqueous electrolytes using lithium salts, such as LiCl/BF or LiBr/THF, the ionic conductivity can be dramatically increased. Near Edge X-ray Absorption Fine Structure (NF-XAFS) spectroscopy studies show that Cl{sup {minus}} anions are completed with the nitrogen groups in these compounds. The increase in ionic conductivity and the degree of complexation, are both related to the number of R=CF{sub 3}SO{sub 2} groups that are used to substitute the amine hydrogen atoms in these aza-ether compounds.
- Research Organization:
- Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 10174283
- Report Number(s):
- BNL--60409; CONF-940690--1; CONF-941063--9; ON: DE94016822
- Country of Publication:
- United States
- Language:
- English
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