Operation Temperature Range

Oxis lithium-sulphide technology operates in a temperature range which is superior to any other rechargeable battery technology. A typical Oxis coin cell rated at 80 C delivers 50 cycles at the rate C/2 (2 hours charge, 2 hours discharge).

A graph below shows the specific capacity in mA hours per gram of sulphur as a function of cycle number.

Oxis D cell (prototyped from a coin cell data): Temperature rating: 0 C … 80 C Voltage: 2.1V Capacity at 80 C: 8.5 Ah Specific Energy: 250 Wh/kg Energy density: 360 Wh/kg

Oxis chemistry is tolerant to high temperatures: when heated to 140 C it delivers full capacity on discharge and recovers 70% of its initial capacity when 'cooled down' to 100 C.

Oxis cells stand overcharging and high discharge rates at any temperature without significant degradation in power delivery.