US Patent No: 7,582,380
Number of patents in Portfolio can not be more than 2000
Lithium-ion cell with a wide operating temperature range
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Sep 1, 2009
Issued date -
Apr 8, 2004
filing date -
10/820,638
serial no -
In Force
status
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Abstract
A lithium-ion rechargeable cell is described which contains an electrolyte comprising a pyrazolium cation, an imidazolium cation, or a combination thereof, as well as lithium ion, and at least one non-Lewis acid derived counter-ion. Electrochemical cells containing an anode, a cathode, and the ionic liquid electrolytes preferably have effective charge/discharge capacity and charging efficiency at low temperatures and at high temperatures.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,973,913 Nonaqueous electrical storage device | 41 | 1997 | |
| 5,827,602 Hydrophobic ionic liquids | 144 | 1997 | |
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| 5,552,241 Low temperature molten salt compositions containing fluoropyrazolium salts | 16 | 1995 | |
| 6,326,104 Electrolytes for lithium rechargeable cells | 12 | 1999 | |
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| 2005/0064,282 Nonaqueous electrolyte battery | 44 | 2004 | |
| 2006/0068,282 Non-aqueous electrolyte battery | 29 | 2005 | |
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| 6,365,301 Materials useful as electrolytic solutes | 46 | 1999 | |
| 2007/0003,833 Battery with molten salt electrolyte and phosphorus-containing cathode | 7 | 2005 | |
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| 6,528,033 Method of making lithium-containing materials | 69 | 2000 | |
| 6,645,452 Methods of making lithium metal cathode active materials | 25 | 2000 | |
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| 5,683,832 Hydrophobic liquid salts, the preparation thereof and their appliction in electrochemistry | 40 | 1995 | |
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| 4,310,400 Thin layer electrode and cell | 14 | 1980 | |
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| 5,965,054 Nonaqueous electrolyte for electrical storage devices | 34 | 1997 | |
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| 5,589,291 Stabilized rechargeable cell in MSE | 14 | 1996 | |
Patent Citation Ranking
Maintenance Fees
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