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Battery and method of making the battery
| Details |
Inventors: Stiles, James A. R.; Brandt, Klaus;
Assignee: Moli Energy Limited (CA)
Primary Examiner: Kalafut; Stephen
Assistant Examiner:
Attorney, Agent or Firm: Lerner, David, Littenberg, Krumholz & Mentlik
An electrode apparatus is disclosed including an electrode which forms a porous, exterior, amalgamated deposit thereon; and means for applying a compressive load to the electrode such that the deposit, when formed, is compressed so as to enhance stripping from the outer surface of said amalgamated deposit. Also a battery, a method of making a battery and a method of operating a battery including such an electrode apparatus are also disclosed. |
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DETAILED DESCRIPTION It has now been found that in accordance with the present invention a significant increase in the number of turnovers can be achieved for electrodes which form porous, exterior amalgamated deposits thereon.
The present invention provides an electrode apparatus comprising an electrode which forms such a porous, exterior, amalgamated deposit thereon, and means for applying a compressive load to the electrode such that the deposit, when formed, is compressed so as to enhance stripping from the outer surface of said amalgamated deposit.
The invention also provides a battery comprising a cathode, an anode, an electrolyte, wherein said anode forms such a porous, exterior, amalgamated deposit thereon, and means for applying a compressive load to the anode such that the deposit, when formed, is compressed so as to enhance stripping from the outer surface of said amalgamated deposit.
Preferably, the electrode is an alkali metal anode, e.
g.
, a lithium anode.
Also, the compressive load is preferably applied continuously at least during recharging.
The present invention further provides a method of making a battery and a method for operating a battery to increase its reversibility by increasing the number of turnovers available within an electrode of the cell.
The method of making the battery includes the step of constructing an electrolytic cell having a cathode, an anode, and an electrolyte, wherein said anode forms such a porous, exterior, amalgamated deposit thereon.
A compressive load is applied to such anode as described above.
Again, the electrode is preferably an alkali metal anode, e.
g.
, a lithium anode, and the compressive load is preferably applied to the electrode continuously during both discharging and recharging.
The electrode apparatus, battery and methods of the present invention provide a number of distinct advantages.
The application of the compressive load forces the particle or grains of the amalgamated deposit on the electrode closer together.
As discussed in more detail below, this can also decrease the electrical resistance between the grains and provide for increased resistance to metal ion migration through the porous deposit from the grains in question
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Heart Surgery 
