Patent EP0118657A1 successfully refreshed from Google Patents.
EP0118657A1
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EP
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Non-aqueous electrochemical cell
Assignee: Toshiba Corp
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Filing: 1984-01-04
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Granted: —
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Expires: 2004-01-04
Abstract
Abstract A non-aqueous electrochemical cell has an anode (2) consisting of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (3) consisting of a porous carbon body (7) and a current collector (6); and an electrolyte containing an oxyhalide, wherein the porous carbon body (7) contains a carbon black having a chain-like structure wherein a thin layer of graphite crystals is formed on a surface of each of carbon black particles. The cell has a high discharge capacity and an excellent discharge efficiency in high rate discharge.
Inventors
- 👤 Shuji Yamada
- 👤 Takahisa Ohsaki
- 👤 Kiyoshi Mitsuyasu
- 👤 Yuichi Sato
- 👤 Yoshiyasu Aoki
- 👤 Kazuya Hiratsuka
- 👤 Masazumi Tsukada
- 👤 Ikuzo Minagawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 11:34
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M50/00; H01M50/50; H01M50/543; H01M50/547; H01M50/548; H01M4/00; H01M4/86; H01M4/96; H01M50/562; H01M50/564; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
75 words
A non-aqueous electrochemical cell comprising an anode (2) consisting of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (3) consisting of a porous carbon body (7) and a current collector (6); and an electrolyte containing an oxyhalide, wherein the porous carbon body (7) contains a carbon black having a chain-like structure wherein a thin layer of graphite crystals is formed on a surface of each of carbon black particles.
Claim 2
Dependent Claim
75 words
A non-aqueous electrochemical cell comprising an anode (2) consisting of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (3) consisting of a porous carbon body (7) and a current collector (6); and an electrolyte containing an oxyhalide, wherein the porous carbon body (7) contains a carbon black having a chain-like structure wherein a thin layer of graphite crystals is formed on a surface of each of carbon black particles.
Claim 3
Dependent Claim
17 words
A cell according to claim 1, characterized in that the porous carbon body further contains acetylene black.
Claim 4
Dependent Claim
15 words
A cell according to claim 1, characterized in that the anode (2) consists of lithium.
Claim 5
Dependent Claim
14 words
A cell according to claim 1, characterized in that the oxyhalide is thionyl chloride.
Claim 6
Dependent Claim
78 words
A non-aqueous electrochemical cell comprising an anode (42) consisting of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (43) consisting of a porous carbon body (46) and a current collector (47); and an electrolyte containing an oxyhalide, wherein the porous carbon body has a porosity of 70 to 85% and the volume of pores having a pore size of 0.1 to 2 µm comprise not less than 30% of total pore volume.
Claim 7
Dependent Claim
78 words
A non-aqueous electrochemical cell comprising an anode (42) consisting of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (43) consisting of a porous carbon body (46) and a current collector (47); and an electrolyte containing an oxyhalide, wherein the porous carbon body has a porosity of 70 to 85% and the volume of pores having a pore size of 0.1 to 2 µm comprise not less than 30% of total pore volume.
Claim 8
Dependent Claim
178 words
A non-aqueous electrochemical cell comprising a metal can (61) serving also as one polarity terminal; an anode (62) which is housed in said metal can (61) and which consists of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (63) which is housed in said metal can (61) and which consists of a porous carbon body (65) and a current collector (66); a separator (64) for physically separating said anode (62) and said cathode (63) in said metal can (61); metal top (71) hermetically sealing an open upper end of said metal can (61); a metal pipe (70) which is inserted in said metal top (71) and which also serves as the other polarity terminal; an electrolyte (73) which contains an oxyhalide and which is introduced into said metal can (61) through said metal pipe (70); and means (74) for sealing said pipe, wherein a level of the electrolyte contained in said metal can (61) is lower than a lower end of said metal pipe (70) which is in said metal can (61).
Claim 9
Dependent Claim
178 words
A non-aqueous electrochemical cell comprising a metal can (61) serving also as one polarity terminal; an anode (62) which is housed in said metal can (61) and which consists of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (63) which is housed in said metal can (61) and which consists of a porous carbon body (65) and a current collector (66); a separator (64) for physically separating said anode (62) and said cathode (63) in said metal can (61); metal top (71) hermetically sealing an open upper end of said metal can (61); a metal pipe (70) which is inserted in said metal top (71) and which also serves as the other polarity terminal; an electrolyte (73) which contains an oxyhalide and which is introduced into said metal can (61) through said metal pipe (70); and means (74) for sealing said pipe, wherein a level of the electrolyte contained in said metal can (61) is lower than a lower end of said metal pipe (70) which is in said metal can (61).
Claim 10
Dependent Claim
208 words
A non-aqueous electrochemical cell comprising a metal can (81) serving also as one polarity terminal; an anode (82) which is housed in said metal can (81) and which consists of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (83) which is housed in said metal can (81) and which consists of a porous carbon body (86) and a current collector (85); a separator (84a, 84b) which physically separates said anode (82) and said cathode (83) in said metal can (81); metal top (88) hermetically sealed to an open upper end of said metal can, said metal top having a central portion made of insulating material; a metal pipe (90) which extends into said metal can through the central portion of said metal top and which also serves as the other polarity terminal; an electrolyte (93) which contains an oxyhalide and which is injected into said metal can (81) through said metal pipe (90); and a metal plug (94) inserted in said metal pipe (90), wherein a portion of said metal pipe (90) through which said metal plug (94) is inserted is caulked, and an upper end of the portion of said metal pipe (90) and said metal plug (94) are welded together.
Claim 11
Dependent Claim
208 words
A non-aqueous electrochemical cell comprising a metal can (81) serving also as one polarity terminal; an anode (82) which is housed in said metal can (81) and which consists of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (83) which is housed in said metal can (81) and which consists of a porous carbon body (86) and a current collector (85); a separator (84a, 84b) which physically separates said anode (82) and said cathode (83) in said metal can (81); metal top (88) hermetically sealed to an open upper end of said metal can, said metal top having a central portion made of insulating material; a metal pipe (90) which extends into said metal can through the central portion of said metal top and which also serves as the other polarity terminal; an electrolyte (93) which contains an oxyhalide and which is injected into said metal can (81) through said metal pipe (90); and a metal plug (94) inserted in said metal pipe (90), wherein a portion of said metal pipe (90) through which said metal plug (94) is inserted is caulked, and an upper end of the portion of said metal pipe (90) and said metal plug (94) are welded together.
Claim 12
Dependent Claim
232 words
A non-aqueous electrochemical cell comprising a metal can (101) serving also as one polarity terminal; an anode (102) which is housed in said metal can (101) and which consists of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (103) which is housed in said metal can (101) and which consists of a porous carbon,body (106) and a current collector (105); a separator (104a, 104b) which physically separates said anode (102) and said cathode (103) in said metal can (101); metal top (108) hermetically sealed to an open upper end of said metal can, said metal top having a central portion made of insulating material; a metal pipe (110) which extends into said metal can through the central portion of said metal top and which also serves as the other polarity terminal; an electrolyte (113) which contains an oxyhalide and which is injected into said metal can (101) through said metal pipe (110); and a metal plug (115) inserted in said metal pipe (110), wherein said metal plug (115) has at an upper end thereof a flange (114) which abuts against an upper end face of said metal pipe (110), a portion of said metal pipe (110) through which said metal plug (115) is inserted is caulked, and an upper end of the portion of said metal pipe (110) and said metal plug (115) are welded together.
Claim 13
Dependent Claim
232 words
A non-aqueous electrochemical cell comprising a metal can (101) serving also as one polarity terminal; an anode (102) which is housed in said metal can (101) and which consists of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (103) which is housed in said metal can (101) and which consists of a porous carbon,body (106) and a current collector (105); a separator (104a, 104b) which physically separates said anode (102) and said cathode (103) in said metal can (101); metal top (108) hermetically sealed to an open upper end of said metal can, said metal top having a central portion made of insulating material; a metal pipe (110) which extends into said metal can through the central portion of said metal top and which also serves as the other polarity terminal; an electrolyte (113) which contains an oxyhalide and which is injected into said metal can (101) through said metal pipe (110); and a metal plug (115) inserted in said metal pipe (110), wherein said metal plug (115) has at an upper end thereof a flange (114) which abuts against an upper end face of said metal pipe (110), a portion of said metal pipe (110) through which said metal plug (115) is inserted is caulked, and an upper end of the portion of said metal pipe (110) and said metal plug (115) are welded together.
Claim 14
Dependent Claim
221 words
A non-aqueous electrochemical cell comprising a metal can (121) serving also as one polarity terminal; an anode (122) which is housed in said metal can (121) and which consists of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (123) which is housed in said metal can (121) and which consists of a porous carbon body (126) and a current collector (125); a separator (124a, 124b) which physically separates said anode (122) and said cathode (123) in said metal can (121); metal top (128) hermetically sealed to an open upper end of said metal can, said metal top having a central portion made of insulating material; a metal pipe (130) which extends into said metal can through the central portion of said metal top and which also serves as the other polarity terminal; an electrolyte which contains an oxyhalide and which is injected into said metal can (121) through said metal pipe (130); and a metal plug (136) inserted in said metal pipe (130), wherein said metal plug (136) has at an upper end thereof a flange (134) which abuts against an upper end face of said metal pipe (130) and at a part of an outer circumferential surface thereof a bulged portion (135) which abuts against an inner circumferential surface of said metal pipe (130).
Claim 15
Dependent Claim
221 words
A non-aqueous electrochemical cell comprising a metal can (121) serving also as one polarity terminal; an anode (122) which is housed in said metal can (121) and which consists of an element selected from the group consisting of lithium, sodium and aluminum; a cathode (123) which is housed in said metal can (121) and which consists of a porous carbon body (126) and a current collector (125); a separator (124a, 124b) which physically separates said anode (122) and said cathode (123) in said metal can (121); metal top (128) hermetically sealed to an open upper end of said metal can, said metal top having a central portion made of insulating material; a metal pipe (130) which extends into said metal can through the central portion of said metal top and which also serves as the other polarity terminal; an electrolyte which contains an oxyhalide and which is injected into said metal can (121) through said metal pipe (130); and a metal plug (136) inserted in said metal pipe (130), wherein said metal plug (136) has at an upper end thereof a flange (134) which abuts against an upper end face of said metal pipe (130) and at a part of an outer circumferential surface thereof a bulged portion (135) which abuts against an inner circumferential surface of said metal pipe (130).
Claim 16
Dependent Claim
22 words
A cell according to claim 9, characterized in that said bulged portion (135) of said metal plug (136) has a bulb-like shape.
Claim 17
Dependent Claim
22 words
A cell according to claim 9, characterized in that said bulged portion (135) of said metal plug (136) has a conical shape.
References Cited (Backward Citations)
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