29-08-2013 дата публикации
Номер: US20130224605A1
Provide are fluorinated cyclic and acyclic carbonate solvent compositions such as various fluorine substituted 1,3-dioxolane-2-one compounds and fluorine substituted 1,3-dioxane-2-one compounds, which are useful as electrolyte solvents for lithium ion batteries. 2. The composition of wherein one or both of Rand Ris branched.3. The composition of wherein A is CHO and Y is a covalent bond claim 1 , and Ris —CFRCHFR claim 1 , optionally wherein Ris —CFCHFCF.4. The composition of wherein A and Y are covalent bonds and Ris —CFRCHFR claim 1 , optionally wherein Ris —CFCHFCF.5. A solvent composition according to the formula R—O—C(═O)—O—R′ claim 1 , wherein at least one of R and R′ is —C(R)(R)CFR(CFCF)CHFR claim 1 , wherein{'sub': f', 'n', '2n+1', 'f', 'f', 'm, 'sup': 7', '3', '4, 'Ris F, CF, or RO(RO)—, n is 0 or 1, m is 0 or 1, and'}{'sub': h', 'h', 'h', 'h', 'f', 'f, 'sup': 8', '7', '7', '8', '1', '7, 'Rand Rare alkyl groups having 1 to 4 carbon atoms, and wherein Rand Rmay together form a ring, provided that when n is 1 both Rand Rare fluorine.'}6. The composition of wherein R and R′ are identical.7. A solvent composition according to the formula{'br': None, 'R—O—C(═O)—O—R′,'}{'sub': x', '2x+1, 'wherein R is CHand x is an integer from 1 to 4, and'}{'sub': h', 'h', 'f', '2', '2', 'n', 'f', 'f', 'p', '2p+1', 'f', 'f', 'm', 'h', 'h', 'f', 'f, 'sup': 7', '8', '1', '7', '7', '3', '4', '7', '8', '1', '7, 'wherein R′ is —C(R)(R)CFR(CFCF)CHFR, wherein Ris F, CF, p is an integer from 1 to 4, or RO(RO)—, Rand Rare both alkyl groups having 1 to 4 carbon atoms which may together form a ring, m is 0 or 1, and n is 0 or 1, provided that when n is one both Rand Rare fluorine.'}8. The composition of wherein n is 0 and Ris a linear or branched CFgroup claim 7 , where p is an integer from 1 to 4.9. The composition of wherein n is 0 and Ris RO(RO)—.10. The composition of wherein n is 0 and wherein Ris fluorine.11. The composition of wherein n is 0 claim 7 , Ris fluorine claim 7 , and Ris ...
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