US5340672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary battery
Assignee: Ube Corp
•
Filing: 1993-07-02
•
Granted: 1994-08-23
•
Expires: 2013-07-02
Abstract
Abstract A secondary battery containing at least a negative electrode, a positive electrode, an electrolyte comprising an alkaline metal salt dissolved therein, and a separator in which the said separator includes a high molecular solid electrolyte membrane formed by coating a latex on a porous membrane, and then drying the material. The separator may include a high molecular solid electrolyte membrane formed by coating a latex on both surfaces of a porous membrane, and then drying the material.
Inventors
- 👤 Tadahiko Kubota
- 👤 Shoichiro Yasunami
- 👤 Yukio Maekawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:01
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/056; H01M10/0564; H01M10/0565; H01M10/052; H01M50/00; H01M50/40; H01M50/409; H01M50/489; H01M50/497; H01M6/00; H01M6/22; H01M10/0525; H01M4/00; H01M4/02; H01M4/13; H01M4/131; H01M4/133; H01M4/36; H01M4/48; H01M4/485; H01M4/50; H01M4/505; H01M4/52; H01M4/525; H01M6/14; H01M6/16; H01M6/162; H01M6/168; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
239 words
A secondary battery comprising, (a) a negative electrode, (b) a positive electrode, (c) an electrolyte comprising a dissolved alkaline metal salt, and (d) a separator comprising a high molecular solid electrolyte membrane formed by coating a latex on both surfaces of a porous membrane, and then drying the coated latex, wherein said latex to be coated on said porous membrane is represented by the following formula (1): --(A).sub.a --(B).sub.b --(C).sub.c (D).sub.d -- (1) wherein A represents a repeating unit obtained by polymerizing a monomer having one polymerizable ethylenically unsaturated group and having nonpolar groups connected to side chain ester groups and amide groups or a monomer having one polymerizable ethylenically unsaturated group and having a nonpolar group in side chains; B represents a repeating unit obtained by polymerizing a monomer having one polymerizable ethylenically unsaturated group and having polar groups connected to side chain ester groups and amide groups or a monomer having one polymerizable ethylenically unsaturated group and having a cyano group; C represents a repeating unit obtained by polymerizing a monomer having at least two polymerizable ethylenically unsaturated groups, at least one of which being in side chains; D represents a repeating unit obtained by polymerizing a monomer having one polymerizable ethylenically unsaturated group and having crosslinkable groups in side chains; and a, b, c and d represent a percentage molar fraction of 0 to 95, 5 to 95, 1 to 20, and 1 to 80, respectively.
Claim 2
Dependent Claim
239 words
A secondary battery comprising, (a) a negative electrode, (b) a positive electrode, (c) an electrolyte comprising a dissolved alkaline metal salt, and (d) a separator comprising a high molecular solid electrolyte membrane formed by coating a latex on both surfaces of a porous membrane, and then drying the coated latex, wherein said latex to be coated on said porous membrane is represented by the following formula (1): --(A).sub.a --(B).sub.b --(C).sub.c (D).sub.d -- (1) wherein A represents a repeating unit obtained by polymerizing a monomer having one polymerizable ethylenically unsaturated group and having nonpolar groups connected to side chain ester groups and amide groups or a monomer having one polymerizable ethylenically unsaturated group and having a nonpolar group in side chains; B represents a repeating unit obtained by polymerizing a monomer having one polymerizable ethylenically unsaturated group and having polar groups connected to side chain ester groups and amide groups or a monomer having one polymerizable ethylenically unsaturated group and having a cyano group; C represents a repeating unit obtained by polymerizing a monomer having at least two polymerizable ethylenically unsaturated groups, at least one of which being in side chains; D represents a repeating unit obtained by polymerizing a monomer having one polymerizable ethylenically unsaturated group and having crosslinkable groups in side chains; and a, b, c and d represent a percentage molar fraction of 0 to 95, 5 to 95, 1 to 20, and 1 to 80, respectively.
Claim 3
Dependent Claim
103 words
The secondary battery according to claim 1, wherein B represents acrylonitrile, methacrylonitrile, or a compound according to the following formula (3): ##STR19## wherein R 4 represents a hydrogen atom or a methyl group; X 2 represents a divalent connecting group; R 5 is --(CH(R 6 )CH(R 7 )O) m --R 6 or --X 3 --R 9 ; R 6 , R 7 and R 8 each is a hydrogen atom or a C 1-5 alkyl group; m is an integer of 1 to 50; X 3 is a C 1-10 alkylene group; R 9 represents a polar group other than a chain ether.
Claim 4
Dependent Claim
30 words
The secondary battery according to claim 2, wherein B represents a compound according to formula (3) in which R 9 represents a cyclic ether group or a carbonic ester group.
Claim 5
Dependent Claim
52 words
The secondary battery according to claim 2, wherein B represents a compound according to formula (3) in which R 9 represents a 3- to 12-membered cyclic ether group, a 5- to 7-membered cyclic carbonic ester group, or a C 2-7 (including carbon atoms contained in the carbonyl group) noncyclic carbonic ester group.
Claim 6
Dependent Claim
42 words
The secondary battery according to claim 2, wherein R 9 represents a 3- to 8-membered cyclic ether group, a 5- or 6-membered cyclic carbonic ester group, or a C 2-5 (including carbon atoms contained in the carbonyl group) noncyclic carbonic ester group.
Claim 7
Dependent Claim
11 words
The secondary battery according to claim 2, wherein B represents acrylonitrile.
Claim 8
Dependent Claim
11 words
The secondary battery according to claim 2, wherein B represents methacrylonitrile.
Claim 9
Dependent Claim
17 words
The secondary battery according to claim 1, wherein the drying time is from 1 to 240 hours.
Claim 10
Dependent Claim
17 words
The secondary battery according to claim 8, wherein the drying time is from 1 to 100 hours.
Claim 11
Dependent Claim
17 words
The secondary battery according to claim 9, wherein the drying time is from 5 to 50 hours.
Claim 12
Dependent Claim
25 words
The secondary battery according to claim 1, wherein an elastomeric high molecular compound is added to said latex to be coated on said porous membrane.
Claim 13
Dependent Claim
32 words
The secondary battery according to claim 1, wherein said negative electrode comprises an active material selected from the group consisting of alkaline metal, alkaline metal alloy, carbon material and transition metal chalchogenide.
Claim 14
Dependent Claim
24 words
The secondary battery according to claim 1, wherein the latex is coated at a thickness on one side of from 1 to 50 μm.
Claim 15
Dependent Claim
24 words
The secondary battery according to claim 1, wherein the latex is coated at a thickness on one side of from 1 to 25 μm.
Claim 16
Dependent Claim
59 words
The secondary battery according to claim 1, wherein A represents a compound according to the following formula (2): ##STR20## wherein R 1 represents a hydrogen atom or a methyl group; X 1 represents a divalent connecting group; R 2 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aralalkyl group, or an aryl group.
Claim 17
Dependent Claim
86 words
The secondary battery according to claim 1, wherein C represents a compound according to the following formula (4): CH.sub.2 ═C(R.sub.10)C(O)--X.sub.4 --(O)C(R.sub.11)C═CH.sub.2( 4) wherein R 10 and R 11 each represents a hydrogen atom or a methyl group; X 4 represents --NH--X 5 --NH-- or --O--X 5 --O--; X 5 represents an alkylene group or --(CH(R 12 )CH(R 13 )O) n ; R 12 and R 13 each is a hydrogen atom or a C 1-5 alkyl group; and n is an integer of 1 to 20.
Claim 18
Dependent Claim
43 words
The secondary battery according to claim 1, wherein C represents a compound according to the following formula (5): CH.sub.2 ═C(R.sub.14)C(O)--O--CH.sub.2).sub.3 C--R.sub.15( 5) wherein R 14 each represents a hydrogen atom or a methyl group and R 15 represents a C 1-10 alkyl group.
Claim 19
Dependent Claim
42 words
The secondary battery according to claim 1, wherein D represents a compound containing an epoxide group, an amino group, a carboxyl group, an acid anhydride group, a hydroxyl group, an amide group, an N-methylolamide group, or an ether of N-methylolamide or isocyanate.
References Cited (Backward Citations)
US4234623A
Cited
US4530890A
Cited
US4800856A
Cited
US4822701A
Cited
US5115057A
Cited
US5237031A
Cited
US5204196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-22 | 1998-02-21 | 1998-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-22 | 2002-02-21 | 2002-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-22 | 2006-02-21 | 2006-08-23 | $7700.00 | Window Closed / Lapsed |