High rate primary lithium battery with solid cathode
A safe high rate primary lithium battery with solid cathode and a lithium anode is provided, having a high rate of discharge due to the lithiated cathode materials contained therein.
1 . A high rate primary lithium battery with solid cathode which comprises:
at least one anode of lithium metal foil,
a current collector engaged with said anode,
at least one cathode of lithiated high discharge rate material capable of at least 2 C rate,
a separator in contact with said cathode and in contact with said anode,
a current collector engaged with said cathode,
an electrolyte contained in said separator and in contact with said anode and said cathode, and
a leak and moisture proof enclosure surrounding said anode, said cathode, said separator, and said electrolyte.
2 . A battery as defined in claim 1 in which:
said battery is a bi-cell having a central anode, a separator on each side, and a cathode on each side thereof.
3 . A battery as defined in claim 1 , in which:
said battery is a bi-cell having a central cathode, a separator on each side, and,
an anode on each side thereof.
4 . A battery as defined in claim 1 in which said separator is of Teflon with a thickness of 0.5 to 1.0 mil, and a porosity of 35 to 65%.
5 . A battery as defined in claim 1 in which;
said cathode material contains a lithiated cobalt oxide.
6 . A battery as defined in claim 1 in which
said cathode contains a lithiated manganese oxide spinel.
7 . A battery as defined in claim 1 in which,
said electrolyte comprises one mole of lithium hexafluorophospate salt, in ethylene carbonate, dimethyl carbonate and ethylmethyl carbonate having a 1:1:1 weight ratio.
8 . A battery as defined in claim 1 in which:
said lithiated cathodic material is in the form of nano-particles.
9 . A battery as defined in claim 1 which is first charged prior to use as a primary battery.