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Energy densities table. Storage type. Specific energy (MJ /kg) Energy density (MJ/ L) Peak recovery efficiency %. Practical recovery efficiency %. Arbitrary Antimatter. 89,875,517,874. depends on density.
The resulting primary zinc–air battery showed peak power density of ~265 mW/cm 3, current density of ~200 mA/cm 3 at 1 V and energy density >700 Wh/kg. [ 19 ] [ 20 ] Rechargeable Zn–air batteries in a tri-electrode configuration exhibited an unprecedented small charge–discharge voltage polarization of ~0.70 V at 20 mA/cm 3 , high ...
Cell chemistry Also known as Electrode Rechargeable Commercialized Voltage Energy density Specific power Cost † Discharge efficiency Self-discharge rate Shelf life Anode Electrolyte Cathode Cutoff Nominal 100% SOC by mass by volume; year V V V MJ/kg (Wh/kg) MJ/L (Wh/L) W/kg Wh/$ ($/kWh) % %/month years Lead–acid: SLA VRLA PbAc ...
Scheme of a proton-conducting fuel cell. A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) [1] into electricity through a pair of redox reactions. [2] Fuel cells are different from most batteries in requiring a continuous source of fuel and oxygen (usually ...
40.104 MJ/kg (11,140 Wh/kg) theoretical. Energy density. J / m³. Specific power. 11,400 W / kg. Nominal cell voltage. 2.91 V. The lithium–air battery (Li–air) is a metal–air electrochemical cell or battery chemistry that uses oxidation of lithium at the anode and reduction of oxygen at the cathode to induce a current flow.
In energy storage and fuels. For energy storage, the energy density relates the stored energy to the volume of the storage equipment, e.g. the fuel tank. The higher the energy density of the fuel, the more energy may be stored or transported for the same amount of volume. The energy of a fuel per unit mass is called its specific energy.