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Lithium battery electromotive force.deep cycle marine battery

source:other news release time:2023-07-10 Hits:0     Popular:Lithium-ion battery wholesale

  

  The electromotive force is the difference between the equilibrium electrode potentials of two electrodes. Take Lead–acid battery as an example, E= Ф+ 0- Ф- 0+RT/F * In( α H2SO4/ α H2O).

  Among them: E - electromotive force

  Ф+ 0- Standard electrode potential of the positive electrode, with a value of 1.690V

  Ф- 0- Negative standard electrode potential, with a value of -0.356V

  R - general Gas constant, whose value is 8.314

  T - temperature, related to the temperature at which the battery is located

  F - Faraday constant, its value is 96485

  α H2SO4- The activity of sulfuric acid, which is related to the concentration of sulfuric acid

  α H2O - Activity of water, related to sulfuric acid concentration

  It can be seen from the above formula that the standard electromotive force of Lead–acid battery is 1.690- (-0.0.356)=2.046V, so the nominal voltage of the battery is 2V. The electromotive force of Lead–acid battery is related to temperature and sulfuric acid concentration.


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