摘要:
An inorganic electrolyte rechargeable electrical storage cell is shown which makes use of non-metallic electrodes in combination with an inorganic electrolyte that includes sulfur dioxide. The electrolyte can be for example a lithium and/or a calcium tetrachloroaluminate salt in sulfur dioxide. The anode of the cell is made of a carbon for example a graphite while the cathode is produced from a carbon having a relatively much higher surface area.
摘要:
A hybrid battery comprising at least two nonaqueous electrochemical systems is described. The first cell comprises an anode of an alkaline earth metal or alloy thereof, and the second cell comprises an anode of an alkali metal or alloy thereof. The first cell is preferably an alkaline earth metal/oxyhalide cell, more preferably a calcium/oxyhalide cell or cells. The second cell is preferably an alkali metal alloy/oxyhalide cell, more preferably a lithium alloy/oxyhalide cell or cells. Such a cell combination is particularly useful for power a down-hole well tool. The down-hole tool is powered by the first cell during a surface test and as the tool descends into the well until all of the calcium is discharged. Then, the second cell powers the down-hole tool for the remainder of the down-hole procedure.
摘要:
A lithium oxyhalide cell electrically connected in parallel with a lithium ion cell is described. Importantly, the open circuit voltage of the freshly built primary lithium oxyhalide cell is equal to or less that the open circuit voltage of the lithium ion cell in a fully charged state. This provides a power system that combines the high capacity of the primary cell with the high pulse power of the secondary cell. This hybrid power system exhibits increased rate capability, higher capacity and improved safety in addition to elimination of voltage delay in comparison to a comparable lithium oxyhalide cell discharge alone.
摘要:
A lithium oxyhalide cell electrically connected in parallel with a lithium ion cell is described. Importantly, the open circuit voltage of the freshly built primary lithium oxyhalide cell is equal to or less that the open circuit voltage of the lithium ion cell in a fully charged state. This provides a power system that combines the high capacity of the primary cell with the high pulse power of the secondary cell. This hybrid power system exhibits increased rate capability, higher capacity and improved safety in addition to elimination of voltage delay in comparison to a comparable lithium oxyhalide cell discharge alone.