State of charge

State of charge (SoC) quantifies the remaining capacity available in a battery at a given time and in relation to a given state of ageing.[1] It is usually expressed as percentage (0% = empty; 100% = full). An alternative form of the same measure is the depth of discharge (DoD), calculated as 1 − SoC (100% = empty; 0% = full). It refers to the amount of charge that may be used up if the cell is fully discharged.[2] State of charge is normally used when discussing the current state of a battery in use, while depth of discharge is most often used to discuss a constant variation of state of charge during repeated cycles.[1][3]

  1. ^ a b Hassini, Marwan; Redondo-Iglesias, Eduardo; Venet, Pascal (2023-07-19). "Lithium–Ion Battery Data: From Production to Prediction". Batteries. 9 (7): 385. doi:10.3390/batteries9070385. ISSN 2313-0105.
  2. ^ Basheer, Yasir; Qaisar, Saeed Mian; Waqar, Asad; Lateef, Fahad; Alzahrani, Ahmad (2023). "Investigating the Optimal DOD and Battery Technology for Hybrid Energy Generation Models in Cement Industry Using HOMER Pro". IEEE Access. 11: 81331–81347. Bibcode:2023IEEEA..1181331B. doi:10.1109/ACCESS.2023.3300228. Retrieved 2024-01-20.
  3. ^ Saxena, Saurabh; Hendricks, Christopher; Pecht, Michael (2016-09-30). "Cycle life testing and modeling of graphite/LiCoO2 cells under different state of charge ranges". Journal of Power Sources. 327: 394–400. doi:10.1016/j.jpowsour.2016.07.057. ISSN 0378-7753.