Electrolyte for electrochemical device
First Claim
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1. An electrolyte for an electrochemical device, said electrolyte comprising an ionic metal complex represented by the general formula (1):
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wherein M is a transition metal selected from the group consisting of Sc, Ti, V, Cr, Mn, Cu, Y, Zr, Nb, Mo, Tc, Ag, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, W, Re, Au, Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, and Lr, or an element selected from the group consisting of elements of groups 12-15 of the periodic table;
Aa+ represents a metal ion, onium ion or proton;
provided that M is not B when Aa+ is Cs+;
a represents a number from 1 to 3;
b represents a number from 1 to 3;
p is b/a;
m represents a number from 1 to 3;
n represents a number from 0 to 4;
q is 0 or 1;
X1 represents O, S or NR5R6;
each of R1 and R2 independently represents H, a halogen, a C1-C10 alkyl group or C1-C10 halogenated alkyl group;
R3 represents a C1-C10 alkylene group, C1-C10 halogenated alkylene group, C4-C20 aryl group or C4-C20 halogenated aryl group;
R4 represents a halogen, C1-C10 alkyl group, C1-C10 halogenated alkyl group, C4-C20 aryl group, C4-C20 halogenated aryl group or X2R7;
X2 represents O, S or NR5R6;
each of R5 and R6 represents H or a C1-C10, alkyl group; and
R7 represents a C1-C10 alkyl group, C1-C10 halogenated alkyl group, C4-C20 aryl group or C4-C20 halogenated aryl group.
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Abstract
The invention relates to an electrolyte for an electrochemical device. This electrolyte includes an ionic metal complex represented by the general formula (1):
wherein M is an element of groups 3-15 of the periodic table; Aa+ represents a metal ion, onium ion or proton; X1 represents O, S or NR5R6; each of R1 and R2 independently represents H, a halogen, a C1-C10 alkyl group or C1-C10 halogenated alkyl group; R3 represents a C1-C10 alkylene group, C1-C10 halogenated alkylene group, C4-C20 aryl group or C4-C20 halogenated aryl group; R4 represents a halogen, C1-C10 alkyl group, C1-C10 halogenated alkyl group, C4-C20 aryl group, C4-C20 halogenated aryl group or X2R7; X2 represents O, S or NR5R6; each of R5 and R6 represents H or a C1-C10 alkyl group; and R7 represents a C1-C10 alkyl group, C1-C10 halogenated alkyl group, C4-C20 aryl group or C4-C20 halogenated aryl group. The electrolyte has high heat resistance and hydrolysis resistance as compared with conventional electrolytes.
51 Citations
16 Claims
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1. An electrolyte for an electrochemical device, said electrolyte comprising an ionic metal complex represented by the general formula (1):
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wherein M is a transition metal selected from the group consisting of Sc, Ti, V, Cr, Mn, Cu, Y, Zr, Nb, Mo, Tc, Ag, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, W, Re, Au, Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, and Lr, or an element selected from the group consisting of elements of groups 12-15 of the periodic table;
Aa+ represents a metal ion, onium ion or proton;
provided that M is not B when Aa+ is Cs+;
a represents a number from 1 to 3;
b represents a number from 1 to 3;
p is b/a;
m represents a number from 1 to 3;
n represents a number from 0 to 4;
q is 0 or 1;
X1 represents O, S or NR5R6;
each of R1 and R2 independently represents H, a halogen, a C1-C10 alkyl group or C1-C10 halogenated alkyl group;
R3 represents a C1-C10 alkylene group, C1-C10 halogenated alkylene group, C4-C20 aryl group or C4-C20 halogenated aryl group;
R4 represents a halogen, C1-C10 alkyl group, C1-C10 halogenated alkyl group, C4-C20 aryl group, C4-C20 halogenated aryl group or X2R7;
X2 represents O, S or NR5R6;
each of R5 and R6 represents H or a C1-C10, alkyl group; and
R7 represents a C1-C10 alkyl group, C1-C10 halogenated alkyl group, C4-C20 aryl group or C4-C20 halogenated aryl group.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
an electrolyte according to claim 1; and
a member selected from the group consisting of a nonaqueous solvent, a polymer and a mixture thereof, said member dissolving therein said electrolyte.
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10. An ion conductor according to claim 9, wherein said nonaqueous solvent is an aprotic solvent.
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11. An ion conductor according to claim 9, wherein said polymer is an aprotic polymer.
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12. An ion conductor according to claim 9, which has a concentration of said electrolyte within a range of from 0.1 mol/dm3 to a saturated concentration.
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13. An ion conductor according to claim 12, wherein said concentration is within a range of from 0.5 mol/dm3 to 1.5 mol/dm3.
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14. An electrochemical device comprising:
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(a) an ion conductor; and
(b) first and second electrodes received in said ion conductor;
wherein said ion conductor comprises; (1) an electrolyte according to claim 1; and
(2) a further constituent selected from the group consisting of a nonaqueous solvent, a polymer and a mixture thereof, wherein said electrolyte is dissolved in said further constituent.
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15. An electrochemical device according to claim 14, wherein said electrochemical device is a lithium cell or a lithium ion cell.
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16. An electrolyte for an electrochemical device, said electrolyte comprising an ionic metal complex represented by the general formula (1):
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wherein M is a transition metal selected from the group consisting of elements of groups 3-11 of the periodic table or an element selected from the group consisting of elements of groups 12-15 of the periodic table;
Aa+ represents a metal ion, onium ion or proton;
a represents a number from 1 to 3;
b represents a number from 1 to 3;
p is b/a;
m represents a number from 1 to 3;
n represents a number from 0 to 4;
q is 0 or 1;
X1 represents O, S or NR5R6;
each of R1 and R2 independently represents a C1-C10 halogenated alkyl group;
R3 represents a C1-C10 akylene group, C1-C10 halogenated alkylene group, C4-C20 aryl group or C4-C20 halogenated aryl group;
R4 represents a halogen, C1-C10 alkyl group, C1-C10 halogenated alkyl group, C4-C20 aryl group, C4-C20 halogenated aryl group or X2R7;
X2 represents O, S or NR5R6;
each of R5 and R6 represents H or a C1-C10, alkyl group; and
R7 represents a C1-C10 alkyl group, C1-C10 halogenated alkyl group, C4-C20 aryl group or C4-C20 halogenated aryl group.
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Specification
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Current AssigneeCentral Glass Company Limited
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Original AssigneeCentral Glass Company Limited
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InventorsTakahashi, Mikihiro, Takase, Hironari, Tsujioka, Shoichi
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Primary Examiner(s)WEINER, LAURA S
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Application NumberUS09/625,353Time in Patent Office854 DaysField of Search429/306, 429/322, 252/62.2, 544/54US Class Current429/306CPC Class CodesC07F 5/025 Boronic and borinic acid co...C07F 5/027 Organoboranes and organobor...H01G 11/56 Solid electrolytes, e.g. ge...H01G 11/62 characterised by the solute...H01M 10/052 Li-accumulatorsH01M 10/0525 Rocking-chair batteries, i....H01M 10/0565 Polymeric materials, e.g. g...H01M 10/0568 characterised by the solutesH01M 2300/002 Inorganic electrolyteH01M 2300/0025 Organic electrolyteH01M 2300/0082 Organic polymersY02E 60/10 Energy storage using batteriesY02E 60/13 Energy storage using capaci...
