US4965151A
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Solid-state electrochemical cell
Assignee: Panasonic Holdings Corp
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Filing: 1990-01-23
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Granted: 1990-10-23
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Expires: 2010-01-23
Abstract
Abstract A solid-state electrochemical cell is disclosed that comprises at least one pair of electrodes and a silver-ion conductive solid-electrolyte layer disposed between the electrodes, wherein at least one of the electrodes contains as an electrode active material a compound oxide composed of silver and transition metal oxide. The electrochemical cell is used as a solid-state rechargeable battery, solid-state analogue memory cell, or the like.
Inventors
- 👤 Kazunori Takada
- 👤 Yasuharu Yamamura
- 👤 Shigeo Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:30
CPC Classifications
H; H01; H01M; H01M14/00; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/483; B; B82; B82Y; B82Y10/00; G; G11; G11C; G11C13/00; G11C13/0002; G11C13/0009; G11C13/0011; H01M10/00; H01M10/05; H01M10/054; H01M10/056; H01M10/0561; H01M10/0562; H01M4/54; H01M4/58; H01M4/5825; G11C2213/00; G11C2213/30; G11C2213/34; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
44 words
A solid-state electrochemical cell comprising at least one pair of electrodes and a silver-ion conductive solidelectrolyte layer disposed between the electrodes, wherein at least one of said electrodes contains as an electrode active material a compound oxide composed of silver and transition metal oxide.
Claim 2
Dependent Claim
44 words
A solid-state electrochemical cell comprising at least one pair of electrodes and a silver-ion conductive solidelectrolyte layer disposed between the electrodes, wherein at least one of said electrodes contains as an electrode active material a compound oxide composed of silver and transition metal oxide.
Claim 3
Dependent Claim
16 words
A solid-state electrochemical cell according to claim 1, wherein said transition metal oxide comprises vanadium oxide.
Claim 4
Dependent Claim
26 words
A solid-state electrochemical cell according to claim 1, wherein said compound oxide is of the formula Ag x V 2 O 5-y (where x>0.35 and 0≦y<5).
Claim 5
Dependent Claim
60 words
A solid-state electrochemical cell according to claim 1, which is used as a solid-state rechargeable battery, wherein said pair of electrodes are a positive electrode and negative electrode for said battery and wherein at least one of said positive electrode and negative electrode contains a compound oxide of the formula Ag x V 2 O 5-y (where 0.6≦x≦0.8 and 0≦y<5).
Claim 6
Dependent Claim
50 words
A solid-state electrochemical cell according to claim 4, wherein said positive electrode contains a compound oxide of the formula Ag x V 2 O 5-y (where 0.6≦x≦0.8 and 0≦y<5) and said negative electrode contains a compound oxide of the formula Ag v V 2 O 5-w (where 0.6≦v≦0.8 and 0≦w<5).
Claim 7
Dependent Claim
69 words
A solid-state electrochemical cell according to claim 5, wherein when said positive electrode contains M mol of Ag x V 2 O 5-y and said negative electrode contains N mol of Ag v V 2 O 5-w , the condition Q 1 ≦Q 2 is satisfied (where Q 1 =M)(1.4x-0.55) when 0.6≦x≦0.7, and Q 1 =M(0.6x+0.01) when 0.7≦x≦0.8; Q 2 =N(0.6v-0.18) when 0.6≦v≦0.7, and Q 2 =N(-0.6v+0.66) when 0.7≦v≦0.8).
Claim 8
Dependent Claim
62 words
A solid-state electrochemical cell according to claim 1, which is used as a solid-state analogue memory cell, wherein said pair of electrodes are a working electrode and counter electrode for said memory cell and wherein at least one of said working electrode and counter electrode contains a compound oxide of the formula Ag x V 2 O 5-y (where x>0.35 and 0≦y<5).
Claim 9
Dependent Claim
50 words
A solid-state electrochemical cell according to claim 7, wherein said working electrode contains a compound oxide of the formula Ag x V 2 O 5-y (where x>0.35 and 0≦y<5) and said counter electrode contains a compound oxide of the formula Ag v V 2 O 5-w (where v>0.35 and 0≦w<5).
Claim 10
Dependent Claim
63 words
A solid-state electrochemical cell according to claim 8, wherein when said working electrode contains M mol of Ag x V 2 O 5-y and said counter electrode contains N mol of Ag v V 2 O 5-w , the condition Q 1 ≦Q 2 is satisfied (where Q 1 =M(0.7x-0.28) when x>0.35; Q 2 =N(0.6v-0.18) when 0.35<v≦0.7, and Q 2 =N(-0.6v+0.66) when v≧0.7).
Claim 11
Dependent Claim
36 words
A solid-state electrochemical cell according to claim 7, wherein said working electrode contains a compound oxide of the formula Ag x V 2 O 5-y (where x>0.35 and 0≦y<5) and said counter electrode contains metal silver.
Claim 12
Dependent Claim
26 words
A solid-state electrochemical cell according to claim 7, wherein said compound oxide is of the formula Ag x V 2 O 5-y (where 0.35<x≦0.8 and 0≦y<5).
Claim 13
Dependent Claim
61 words
A solid-state electrochemical cell according to claim 1, wherein said silver-ion conductive solid electrolyte layer is composed of aAgX--bAg 2 O-cM k O l (where X is selected from the group consisting of I, Br, and Cl; M is selected from the group consisting of W, Mo, Si, V, Cr, P, and B; and the relationships 0.1≦a/(a+b+c)≦1.0 and 2/7≦k/l≦2/3 are satisfied).
Claim 14
Dependent Claim
59 words
A solid-state electrochemical cell according to claim 1, wherein said silver-ion conductive solid electrolyte layer is composed of pAgX--aAgM m O n (where X is selected from the group consisting of I, Br, and Cl; M is selected from the group consisting of W, Mo, Si, V, Cr, P, and B; and the relationships 0.1≦p/(p+q)≦1.0 and 1/5≦m/n≦2/3 are satisfied).
References Cited (Backward Citations)
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