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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0453878 (1995-05-30) |
| 우선권정보 | JP-0116732 (1994-05-30) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 428 인용 특허 : 1 |
A highly reliable rechargeable battery comprising an anode, a separator, a cathode, an electrolyte or an electrolyte solution, and a housing, characterized in that said anode is structured to have a size which is greater than that of said cathode. The rechargeable battery provides an increased energ
A highly reliable rechargeable battery comprising an anode, a separator, a cathode, an electrolyte or an electrolyte solution, and a housing, characterized in that said anode is structured to have a size which is greater than that of said cathode. The rechargeable battery provides an increased energy density and has a prolonged charging and discharging cycle life, in which a dendrite causing a reduction in the battery performance, which is generated upon operating charging in the conventional rechargeable battery, is effectively prevented from generating or from growing in the case where it should be generated.
A highly reliable rechargeable battery comprising an anode, a separator, a cathode, an electrolyte or an electrolyte solution, and a housing, characterized in that said anode is structured to have a size which is greater than that of said cathode. The rechargeable battery provides an increased energ
A highly reliable rechargeable battery comprising an anode, a separator, a cathode, an electrolyte or an electrolyte solution, and a housing, characterized in that said anode is structured to have a size which is greater than that of said cathode. The rechargeable battery provides an increased energy density and has a prolonged charging and discharging cycle life, in which a dendrite causing a reduction in the battery performance, which is generated upon operating charging in the conventional rechargeable battery, is effectively prevented from generating or from growing in the case where it should be generated. echargeable lithium battery of claim 1 in which the battery is cylindrical. 11. A rechargeable lithium battery comprising an anode, a separator, a cathode, a non-aqueous electrolyte or a non-aqueous electrolyte solution, and a housing, wherein: said rechargeable lithium battery is coin-shaped, prismatic or cylindrical; said anode comprises a lithium anode active material and said cathode comprises a lithium containing transition metal oxide as a cathode active material; said anode and said cathode are positioned to oppose each other through said separator in said rechargeable battery and have a distance (d) between said anode and said cathode measured perpendicularly to a plane of said anode opposed to a plane of said cathode; said anode is positioned such that a shortest distance between corresponding corresponding edges of said anode and said cathode is 10 or more times greater than said distance (d) between said anode and said cathode, measured perpendicularly to said anode and said cathode planes; and said anode has a greater area than said cathode such that a picture plane of said cathode, which is provided by vertically projecting said plane of said cathode onto said plane of said anode, is situated within said plane of said anode in order to reduce an electric field intensity at an edge portion of said anode, whereby dendrite formation is inhibited and battery life is prolonged. 12. A rechargeable lithium battery comprising an anode, a separator, a cathode, a non-aqueous electrolyte or a non-aqueous electrolyte solution, and a housing, wherein: said rechargeable lithium battery is coin-shaped; said cathode comprises a lithium-containing transition metal oxide; said anode and said cathode are positioned to oppose each other through said separator in said rechargeable lithium battery; each of said anode and said cathode has a plane such that said plane of said anode is opposed to said plane of said cathode; said anode and said cathode have a distance (d) between said plane of said anode and said plane of said cathode measured perpendicularly to the planes of said anode and said cathode; said anode is positioned such that the shortest distance between an edge of said anode and an edge of said cathode is 10 or more times greater than said distance (d); and said anode has a greater area than said cathode such that a picture plane of said cathode, which is provided by vertically projecting said plane of said cathode onto said plane of said anode, is situated within said plane of said anode in order to reduce an electric field intensity at an edge portion, whereby dendrite formation is inhibited and battery life is prolonged.
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