Dispersed particle resistance (DPR) is a measured parameter to characterize battery active materials.[1][2][3] It is seen as an indicator of lithium-ion battery active material rate capability. It is the slope of voltage-current linear fit for active material samples in suspensions. It can be obtained by applying different voltages on a suspension and measuring the currents, after which the data points are plotted. The slope of the plot is referred to as dispersed particle resistance. It can also be done in the opposite way where different currents are applied and voltages are measured. The key advantage of this dispersed particle resistance technique is fast and accurate comparing with the conventional characterization method for which batteries need to be fabricated and tested for a long time.

References

  1. ↑ Qi, Zhaoxiang; Koenig, Gary M. (2017-01-01). "Electrochemical Evaluation of Suspensions of Lithium-Ion Battery Active Materials as an Indicator of Rate Capability". Journal of the Electrochemical Society. 164 (2): A151–A155. doi:10.1149/2.0681702jes. ISSN 0013-4651. S2CID 99072168.
  2. ↑ Qi, Zhaoxiang; Dong, Hongxu; Koenig, Gary M. (2017-11-01). "Electrochemical Characterization of Lithium-Ion Battery Cathode Materials with Aqueous Flowing Dispersions". Electrochimica Acta. 253: 163–170. doi:10.1016/j.electacta.2017.09.031. ISSN 0013-4686.
  3. ↑ Geng, Linxiao; Denecke, Matthew E.; Foley, Sonia B.; Dong, Hongxu; Qi, Zhaoxiang; Koenig, Gary M. (2018-08-10). "Electrochemical characterization of lithium cobalt oxide within aqueous flow suspensions as an indicator of rate capability in lithium-ion battery electrodes". Electrochimica Acta. 281: 822–830. doi:10.1016/j.electacta.2018.06.037. ISSN 0013-4686. S2CID 103962594.
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