| 摘要 |
An electrochemical cell comprising:
a non-aqueous electrolyte comprising an organic solvent,
electrodes being wound together into a jellyroll electrode assembly, wherein the cathode assembly comprises a metallic cathode current collector having two major surfaces and a cathode coating comprising iron disulfide disposed on at least one of the two major surfaces and the anode comprising metallic lithium alloyed with less than 1.0 percent by weight of aluminum and electrical contact between the electrodes and other cell components is made by means of pressure or fastening,
wherein the anode to cathode input ratio is less than or equal to 1.0, wherein the anode to cathode ratio is determined as follows:
- anode to cathode input ratio = anode capacity per 2.54 cm [linear inch]/cathode capacity per 2.54 cm [linear inch]
wherein
- the anode capacity per 2.54 cm [linear inch] = (foil thickness) x (interfacial electrode width) x 2.54 cm [1 linear inch] x (density of lithium foil at 20 °C x (lithium energy density, 2861.7 mAh/g), and
- the cathode capacity per 2.54 cm [linear inch] = (final cathode coating thickness) x (interfacial electrode width) x 2.54 cm [1inch] x (cathode dry mix density) x (final cathode packing percentage) x (dry weight percent FeS 2 ) x (percent purity FeS 2 ) x (FeS 2 energy density, 893.58 mAh/g). |
