US5300374A — Ion conducting polymers

Claim 1

Independent Claim 56 words

An ion conducting polymer composition comprising: a block copolymer of the formula R'--(CH 2 CH 2 O) n --R", wherein the molecular weight of said block copolymer is less than about 5000, n is from about 5 to about 34, and R' and R" are flexible units; and an effective amount of a dissociable lithium salt.

Claim 2

Dependent Claim 56 words

An ion conducting polymer composition comprising: a block copolymer of the formula R'--(CH 2 CH 2 O) n --R", wherein the molecular weight of said block copolymer is less than about 5000, n is from about 5 to about 34, and R' and R" are flexible units; and an effective amount of a dissociable lithium salt.

Claim 3

Dependent Claim 74 words

An ion conducting polymer composition in accordance with claim 1 wherein said dissociable lithium salt is selected from the group comprising LiPF 6 , LiBF 4 , LiBr, LiN(SO 2 CF 3 ) 2 , LiI, LiNO 3 , LiSCN, LiB(C 6 H 5 ) 4 , LiAsF 6 , LiCF 3 COO, LiClO 4 , LiCF 3 SO 3 , LiSO 3 (CF 2 ) 3 SO 3 Li, and Li 2 S.

Claim 4

Dependent Claim 19 words

An ion polymer composition in accordance with claim 2 wherein said R' and said R" are both polypropylene oxide.

Claim 5

Dependent Claim 31 words

An ion conducting polymer composition in accordance with claim 3 wherein the molar ratio of ethylene oxide in said block copolymer to lithium cation is from about 6:1 to about 80:1.

Claim 6

Dependent Claim 15 words

An ion conducting polymer composition in accordance with claim 1 further comprising: a compatible plasticizer.

Claim 7

Dependent Claim 33 words

An ion conducting polymer composition in accordance with claim 5, wherein said plasticizer is selected from the group comprising propylene carbonate, ethylene glycol, glycerol, tetraethylene glycol, polyethylene glycol, propylene triol and propylene/ethylene triol.

Claim 8

Dependent Claim 16 words

An ion conducting polymer composition in accordance with claim 1 further comprising: a silane coupling agent.

Claim 9

Dependent Claim 63 words

An ion conducting polymer composition in accordance with claim 7 wherein said silane coupling agent is of the formula X'--(CH 2 ) m ---Si(OR'") 3 ; m is from about 2 to about 6; X' is selected from the group comprising glycidoxy, amino, mercapto, hydroxyl and acrylate; and R'" is selected from the group comprising --CH 3 and --CH 2 CH 3 .

Claim 10

Dependent Claim 29 words

An ion conducting polymer composition in accordance with claim 1 wherein said end groups R' and R" are selected from the group comprising polypropylene oxide, polyethyleneimine, polyphosphazine, and polysiloxane.

Claim 11

Dependent Claim 45 words

An ion conducting polymer composition in accordance with claim 1 wherein the ratio of the number of moles of ethylene oxide in said block copolymer to the number of moles of lithium cations in said dissociable lithium salt is from about 6:1 to about 80:1.

Claim 12

Dependent Claim 31 words

An ion conducting polymer composition in accordance with claim 10 wherein the molar ratio of ethylene oxide in said block copolymer to lithium cation is from about 6:1 to about 20:1.

Claim 13

Dependent Claim 22 words

An ion conducting polymer composition in accordance with claim 1 wherein said block copolymer has a molecular weight less than about 2500.

Claim 14

Dependent Claim 76 words

An ion conducting polymer composition in accordance with claim 1 further comprising: dangling branches primarily attached to at least one of said R' and R" groups, said dangling branches of the formula CH 3 (CH 2 CH 2 X) p Z; wherein p is from about 0 to about 10; X is selected from the group comprising oxygen, nitrogen, and sulfur; and Z is selected from the group comprising epoxy, glycidoxy, amino, mercapto, hydroxyl, and acrylate.

Claim 15

Independent Claim 136 words

A method of forming an ion conducting polymeric laminate between a first and a second substrate, each said substrate having two faces, said method comprising: preparing an ion conducting polymer composition comprising a block copolymer and an effective amount of a dissociable lithium salt, said block copolymer being of the formula R'--(CH 2 CH 2 O) n --R", wherein the molecular weight of said block copolymer is less than about 5000, n is from about 5 to about 34, and R' and R" are flexible units; depositing said composition onto one of said faces of said first substrate; contacting one of said faces of said second substrate with said composition deposited upon said first substrate such that a thin film of said composition is formed between said first and said second substrates; and curing said composition.

Claim 16

Independent Claim 136 words

A method of forming an ion conducting polymeric laminate between a first and a second substrate, each said substrate having two faces, said method comprising: preparing an ion conducting polymer composition comprising a block copolymer and an effective amount of a dissociable lithium salt, said block copolymer being of the formula R'--(CH 2 CH 2 O) n --R", wherein the molecular weight of said block copolymer is less than about 5000, n is from about 5 to about 34, and R' and R" are flexible units; depositing said composition onto one of said faces of said first substrate; contacting one of said faces of said second substrate with said composition deposited upon said first substrate such that a thin film of said composition is formed between said first and said second substrates; and curing said composition.

Claim 17

Dependent Claim 32 words

A method of forming an ion conducting polymeric laminate in accordance with claim 14 wherein said R' and said R" are selected from the group comprising polypropylene oxide, polyethyleneimine, polyphosphazine, and polysiloxane.

Claim 18

Dependent Claim 24 words

A method of forming an ion conducting polymeric laminate in accordance with claim 15 wherein said R' and said R" are both polypropylene oxide.

Claim 19

Dependent Claim 49 words

A method of forming an ion conducting polymeric laminate in accordance with claim 14 wherein the ratio of the number of moles of ethylene oxide in said block copolymer to the number of moles of lithium cations in said dissociable lithium salt is from about 6:1 to about 80:1.

Claim 20

Dependent Claim 49 words

A method of forming an ion conducting polymeric laminate in accordance with claim 17 wherein the ratio of the number of moles of ethylene oxide in said block copolymer to the number of moles of lithium cations in said dissociable lithium salt is from about 6:1 to about 20:1.

Claim 21

Dependent Claim 78 words

A method of forming an ion conducting polymeric laminate in accordance with claim 14 wherein said dissociable lithium salt is selected from the group comprising LiPF 6 , LiBF 4 , LiBr, LiN(SO 2 CF 3 ) 2 , LiI, LiNO 3 , LiSCN, LiB(C 6 H 5 ) 4 , LiAsF 6 , LiCF 3 COO, LiClO 4 , LiCF 3 SO 3 , LiSO 3 (CF 2 ) 3 SO 3 Li, and Li 2 S.

Claim 22

Dependent Claim 23 words

A method of forming an ion conducting polymeric laminate in accordance with claim 14 wherein said dissociable lithium salt is LiClO 4 .

Claim 23

Dependent Claim 25 words

A method of forming an ion conducting polymeric laminate in accordance with claim 14 wherein said dissociable lithium salt is LiCF 3 SO 3 .

Claim 24

Dependent Claim 26 words

A method of forming an ion conducting polymeric laminate in accordance with claim 14 wherein said block copolymer has a molecular weight less than about 2500.

Claim 25

Dependent Claim 93 words

An ion conducting polymeric laminate comprising: at least one substrate having at least one face; and a layer of ion conducting polymer composition comprising an ion conducting polymer and an effective amount of a dissociable lithium salt, said polymer composition contacting said one face of said substrate, wherein said ion conducting polymer comprises a block copolymer of the formula R'--(CH 2 CH 2 O) n --R", the molecular weight of said block copolymer is less than about 5000, n is from about 5 to about 34, and R' and R" are flexible units.

Claim 26

Dependent Claim 93 words

An ion conducting polymeric laminate comprising: at least one substrate having at least one face; and a layer of ion conducting polymer composition comprising an ion conducting polymer and an effective amount of a dissociable lithium salt, said polymer composition contacting said one face of said substrate, wherein said ion conducting polymer comprises a block copolymer of the formula R'--(CH 2 CH 2 O) n --R", the molecular weight of said block copolymer is less than about 5000, n is from about 5 to about 34, and R' and R" are flexible units.

Claim 27

Dependent Claim 80 words

An ion conducting polymer composition comprising: an ethylene oxide block copolymer having end groups R' and R", said end groups being flexible units, said copolymer having a molecular weight less than about 5000; and an effective amount of a dissociable lithium salt, wherein said composition before curing exhibits a viscosity of less than about 100 Poise and after curing, said composition exhibits a conductivity of at least about 10 -6 S/cm, and a luminous transmittance of at least about 70%.

Claim 28

Dependent Claim 80 words

An ion conducting polymer composition comprising: an ethylene oxide block copolymer having end groups R' and R", said end groups being flexible units, said copolymer having a molecular weight less than about 5000; and an effective amount of a dissociable lithium salt, wherein said composition before curing exhibits a viscosity of less than about 100 Poise and after curing, said composition exhibits a conductivity of at least about 10 -6 S/cm, and a luminous transmittance of at least about 70%.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1997-04-04	1997-10-04	1998-04-05	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2001-04-04	2001-10-04	2002-04-05	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2005-04-04	2005-10-04	2006-04-05	$7700.00	Window Closed / Lapsed

Ion conducting polymers

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag