EWT 24V 60AH Lifepo4 Battery Pack Electric Motorcycles Pack
| species |
Lithium Iron Phosphate |
Voltage | 32700-24V |
capacity | 60AH |
Batteries | IFR32700 3.2V 6Ah |
size | 195*131*185mm |
weight | 12KG |
Maximum charging current | 30A |
Maximum discharge current | 60A |
Display screen | No |
Communication support | Bluetooth |
In order to more accurately reflect the electrode voltage of a
lithium battery, it can be expressed by the change of Gibbs free
energy ΔG, or by the lithium chemical potential difference (μCLi,
μALi) between the positive and negative electrodes:
Formally, the chemical potential of lithium can be divided into two
parts: the electrochemical potential Δμe and the ionic chemical
potential ΔμLi+, which further describe the change of Gibbs free
energy in the positive and negative electrodes, as well as its
relationship with electron and ion exchange. It is generally
believed that electrons play a dominant role, for example, by
substituting transition metals in olivine materials to produce
transition metal ions with higher ionization potentials, a higher
average voltage can be obtained, which is supported by many reports
(J. Electrochem. Soc., 144, 1188 (1997);
J.Phys.Chem.B,108,16093(2004).). To gain insight into the
fundamental processes of electron and ion exchange in electrodes
and their associated effects on battery performance, Ceder et al.
developed the first first-principles calculations (Phys. Rev. B,
56(3), 1354(1997).). However, until now, there has not been a
single experiment that can clearly describe the effect of
electron-ion interaction on battery voltage.
Voltage is a key parameter that determines the performance of
lithium-ion batteries, and the higher the average voltage, the
higher the energy and power density. Theoretically, the potential
of the lithium intercalation electrode is very related to the
chemical potential of the electrons and ions, as well as the
difference in the voltage of the battery, but the precise
contribution of the electrons and lithium ions to the voltage
remains unclear because these quantities cannot be obtained
experimentally.
