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Organic solvents, electrolytes, and lithium ion cells with good low temperature performance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 2002 |
| Description | Multi-component organic solvent systems, electrolytes and electrochemical cells characterized by good low temperature performance are provided. In one embodiment, an improved organic solvent system contains a ternary mixture of ethylene carbonate, dimethyl carbonate and diethyl carbonate. In other embodiments, quaternary systems include a fourth component, i.e, an aliphatic ester, an asymmetric alkyl carbonate or a compound of the formula LiOX, where X is R, COOR, or COR, where R is alkyl or fluoroalkyl. Electrolytes based on such organic solvent systems are also provided and contain therein a lithium salt of high ionic mobility, such as LiPF.sub.6. Reversible electrochemical cells, particularly lithium ion cells, are constructed with the improved electrolytes, and preferably include a carbonaceous anode, an insertion type cathode, and an electrolyte interspersed therebetween. |
| File Size | 1474841 |
| Page Count | 33 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080004940 |
| Archival Resource Key | ark:/13960/t56f0sz50 |
| Language | English |
| Publisher Date | 2002-12-10 |
| Access Restriction | Open |
| Subject Keyword | Inorganic, Organic And Physical Chemistry Solvents Patents Electrochemistry Lithium Electrolytes Electrochemical Cells Metal Ions Low Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
