US4722877A
Expired / Lapsed
US
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Long cycle life solid-state solid polymer electrolyte cells
Assignee: Eltron Research Inc
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Filing: 1986-09-15
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Granted: 1988-02-02
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Expires: 2006-09-15
Abstract
Abstract Rechargeable, long cycle life solid-state galvanic cells comprising cation conducting solid polymer electrolyte contacting intercalation compound negative and positive electrodes are disclosed. Rechargeable solid-state lithium conducting solid polymer electrolyte cells utilize lithium intercalating electrodes and lithium ion conducting solid polymer electrolyte. Rechargeable solid-state sodium ion conducting solid polymer electrolyte cells utilize homogeneous matrix electrodes comprising transition metal doped beta"-alumina electrodes and sodium ion conducting solid polymer electrolyte.
Inventors
- 👤 Anthony F. Sammells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:10
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/485; H01M10/00; H01M10/05; H01M10/052; H01M10/0525; H01M10/056; H01M10/0564; H01M10/0565; H01M4/13; H01M4/131; H01M4/58; H01M4/581; H01M4/5815; H01M2004/026; H01M2004/027; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
82 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell comprising: a lithium intercalation compound negative electrode selected from the group consisting of: MoO 2 ; RuO 2 ; WO; OsO 2 ; IrO 2 ; and Mo1/2V1/2O 2 ; a lithium ion conducting solid polymer electrolyte comprising a lithium ion conducting supporting electrolyte complexed with a solid polymer contacting said negative electrode on one side; and a lithium intercalation compound positive electrode contacting the opposite side of said solid polymer electrolyte.
Claim 2
Dependent Claim
82 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell comprising: a lithium intercalation compound negative electrode selected from the group consisting of: MoO 2 ; RuO 2 ; WO; OsO 2 ; IrO 2 ; and Mo1/2V1/2O 2 ; a lithium ion conducting solid polymer electrolyte comprising a lithium ion conducting supporting electrolyte complexed with a solid polymer contacting said negative electrode on one side; and a lithium intercalation compound positive electrode contacting the opposite side of said solid polymer electrolyte.
Claim 3
Dependent Claim
136 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 1 wherein said lithium intercalation compound positive electrode is selected from the group consisting of: TiS 2 ; ZrS 2 ; ZrSe 2 a; VSe 2 ; V 2 S 5 ; Fe 0 .25 V 0 .75 S 2 a; V 0 .25 S 2 ; Cr 0 .5 V 0 .5 S 2 ; Cr 0 .75 V 0 .25 S 2 ; Cr 5 V 0 .5 S 2 ; NbS 3 ; NiPS 3 ; FeOCl; UO 2 F 2 ; NbSe 3 ; MoS 3 ; CuS; Cr 3 O 8 ; V 6 O 13 (stoichiometric); V 6 O 13 (non-stoichiometric); TaS 2 ; MoS 2 ; MoSe 2 ; WS 2 ; and WSe 2 .
Claim 4
Dependent Claim
69 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 2 wherein said lithium ion conducting supporting electrolyte is selected from the group consisting of: LiCF 3 SO 3 ; LiAsF 6 ; LiClO 4 ; LiAlCl 4 ; LiGaCl 4 ; LiBF 4 ; and LiCl, and said solid polymer is selected from the group consisting of: poly(ethylene oxide); poly(ethylene oxide)/poly(ehtylene glycol) mixtures; and polyphosphazene.
Claim 5
Dependent Claim
21 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 3 which is hermetically sealed from the atmosphere.
Claim 6
Dependent Claim
21 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 1 which is hermetically sealed from the atmosphere.
Claim 7
Dependent Claim
44 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 1 wherein said lithium intercalation compound negative electrode comprises WO 2 in a dispersion with an agent selected from the group consisting of: poly(ethylene oxide); graphite and poly(ethylene oxide); and Teflon.
Claim 8
Dependent Claim
42 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 2 wherein said lithium intercalation compound comprises TiS 2 in a dispersion with an agent selected from the group consisting of: poly(ethylene oxide); graphite and poly(ethylene oxide); and Teflon.
Claim 9
Dependent Claim
69 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 1 wherein said lithium ion conducting supporting electrolyte is selected from the group consisting of: LiCF 3 SO 3 ; LiAsF 6 ; LiClO 4 ; LiAlCl 4 ; LiGaCl 4 ; LiBF 4 ; and LiCl, and said solid polymer is selected from the group consisting of: poly(ethylene oxide); poly(ethylene oxide)/poly(ehtylene glycol) mixtures; and polyphosphazene.
Claim 10
Dependent Claim
44 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 1 wherein said negative electrode comprises lithium intercalated WO 2 , said polymer electrolyte comprises poly(ethylene oxide) and LiCF 3 SO 3 , and said positive electrode comprises TiS 2 .
Claim 11
Dependent Claim
47 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 1 wherein said negative electrode comprises lithium intercalated WO 2 , said solid polymer electrolyte comprises poly(ethylene oxide)/poly(ethylene glycol) mixture and LiCF 3 SO 3 , and said positive electrode comprises TiS 2 .
Claim 12
Dependent Claim
44 words
A rechargeable solid-state lithium conducting solid polymer electrolyte electrochemical cell according to claim 1 wherein said negative electrode comprises lithium intercalated WO 2 , said solid polymer electrolyte comprises polyphasphazene and LiCF 3 SO 3 , and said positive electrode comprises TiS 2 .
Claim 13
Dependent Claim
78 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell comprising: a sodium intercalation compound negative electrode having homogeneous matrix of transition metal ion doped beta"-alumina; a sodium ion conducting solid polymer electrolyte comprising a sodium ion conducting supporting electrolyte complexed with a solid polymer contacting said negative electrode on one side; and a sodium intercalation compound positive electrode having homogeneous matrix of transition metal ion doped beta"-alumina contacting the opposite side of said solid polymer electrolyte.
Claim 14
Dependent Claim
78 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell comprising: a sodium intercalation compound negative electrode having homogeneous matrix of transition metal ion doped beta"-alumina; a sodium ion conducting solid polymer electrolyte comprising a sodium ion conducting supporting electrolyte complexed with a solid polymer contacting said negative electrode on one side; and a sodium intercalation compound positive electrode having homogeneous matrix of transition metal ion doped beta"-alumina contacting the opposite side of said solid polymer electrolyte.
Claim 15
Dependent Claim
101 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 12 wherein said positive electrode comprises Na 1 .66 Mg 0 .67 Al 10 .33-y M y O 17 and said negative electrode is selected from the group consisting of Na 1 .68 Li 0 .32 Al 10 .41-y M y O 18 and Na 1 .81 Li 0 .32 Al 10 .33-y M y O 18 , where M is selected from the group consisting of Cr 2+ , Cr 3+ , Fe 2+ , and Fe 3+ whereby y is about 0.1 to about 0.65.
Claim 16
Dependent Claim
60 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 13 wherein said sodium ion conducting supporting electrolyte is selected from the group consisting of NaCF 3 SO 3 ; NaAlCl 4 ; and NaClO 4 ; and said solid polymer is selected from the group consisting of: poly(ethylene oxide); poly(ethylene oxide/poly(ethyelene glycol) mixtures; and polyphosphazene.
Claim 17
Dependent Claim
22 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 14 which is hermetically sealed from the atmosphere.
Claim 18
Dependent Claim
20 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 12 hermetically sealed from the atmosphere.
Claim 19
Dependent Claim
59 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 12 wherein said sodium ion conducting supporting electrolyte is selected from the group consisting of NaCF 3 SO 3 ; NaAlClhd 4; and NaClO 4 ; and said solid polymer is selected from the group consisting of: poly(ethylene oxide); poly(ethylene oxide/poly(ethyelene glycol) mixtures; and polyphosphazene.
Claim 20
Dependent Claim
71 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 12 wherein said negative electrode comprises Na 1 .81 Li 0 .32 Al 10 .33-y Cr y O 18 , said solid polymer electrolyte comprises polyphosphazene, NaCF 3 SO 3 , and said positive electrode comprises Na 1 .66 Mg 0 .67 Al 0 .33-y Fe y O 17 wherein y is about 0.1 to about 0.65.
Claim 21
Dependent Claim
73 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 12 wherein said negative electrode comprises Na 1 .81 Li 0 .32 Al 10 .33-y Cr y O 18 , said solid polymer electrolyte comprises poly(ethylene oxide) and NaCF 3 SO 3 , and said positive electrode comprises Na 1 .66 Mg 0 .67 Al 10 .33-y Fe y O 17 wherein y is about 0.1 to about 0.65.
Claim 22
Dependent Claim
75 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 12 wherein said negative electrode comprises Na 1 .81 Li 0 .32 Al 10 .33-y Cr y O 18 , said solid polymer electrolyte comprises poly(ethylene oxide)/poly(ethylene glycol) mixture and NaCF 3 SO 3 , and said positive electrode comprises Na 1 .66 Mg 0 .67 Al 10 .33-y Fe y O 17 wherein y is about 0.1 to about 0.65.
Claim 23
Dependent Claim
29 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 12 wherein said transition metal is selected from the group consisting of chromium and iron.
Claim 24
Dependent Claim
32 words
A rechargeable solid-state sodium ion conducting solid polymer electrolyte electrochemical cell according to claim 12 wherein said alumina is stabilized by a material selected from the group consisting of magnesium and lithium.
References Cited (Backward Citations)
US4233377A
Cited
US4303748A
Cited
US4376709A
Cited
US4542009A
Cited
US4547440A
Cited
US4589197A
Cited
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