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Construction |
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Anode
Anode is made of battery grade Lithium foil, which is pressed on the inner surface of the cell can to provide a mechanically sound and reliable electrical connection.
Cathode
The cathode is made of highly porous Teflon-bonded carbon powder. Thionyl Chloride cathodic reduction occurs on the cathode surface when a load is connected. The porosity of the carbon results in a true surface area compatible with the current capability of the cell.
Separator
The separator, between anode and the cathode, prevents internal shorts while enabling ions to move freely between the electrodes. It is made of non-woven glass, carefully selected for compatibility with the chemical system during prolonged storage and subsequent operation.
Electrolyte
The electrolyte is basically a solution of lithium Aluminum Tetrachloride in thionyl chloride which is highly ionic conductive over the entire temperature range.
Hermetical seal
It is made of metal/glass-to-metal/porcelain insulative hermetical seal structure.
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Electrochemical Processes |
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The reactions during current flow are:
4Li + 2SOCl2 --★ 4LiCl + S + SO2
Most of the SO2 formed during cell discharge is dissolved in the electrolyte and cathode.
At the Anode:
4Li--★4Li+4e-
At the Cathode: 2SOCl2 --★SO2 + S+3Cl- -4e- |
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Characteristics |
A.High Voltage and energy density
Open Circuit voltage 3.6V, energy density can reach up to 500wh/kg,1000Wh/dm3.
B.Excellent discharging characteristics
Discharging medium-sized current, flat discharging curves obtained. Within the range of 90% volume, the operation platform remains unchanged .
C.Long storage life
Annual discharging rate is below 1%, the storage life can be up to 10 years. Cells can be applied in many fields after long storage life .
D.Wide operation temperature range
Wide operation range,from -55＜C゛+85＜C. It remains 50% of the nominal capacity under the temperature of -55＜C.Excellent high and low temperature characteristics.
E.Reliable Security
Air-tightness welded. No leakage、No pollution、unique security design. Reliable security specifications. |
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Battery Cell 