Electrode materials for rechargeable zinc cells and batteries produced therefrom

  • US 9,780,412 B2
  • Filed: 03/17/2017
  • Issued: 10/03/2017
  • Est. Priority Date: 06/08/2015
  • Status: Active Grant
First Claim
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1. A zinc ion battery, comprising:

  • a positive electrode compartment having enclosed therein an intercalation layered positive electrode material described by the formula MxV2O5.nH2O when the positive electrode is in a fully charged state, wherein x is in a range from 0.05 to less than 1, n is in a range from greater than 0 to 2, wherein M is any one or combination of a d-block metal ion, f-block metal ion and alkaline earth ion, the metal M ion being in a +2 to +4 valence state, and wherein said V2O5 is a layered crystal structure having the metal ions M pillared between the layers, and waters of hydration coordinated to the metal ions M;

    a negative electrode compartment having enclosed therein a negative electrode for storing zinc;

    a separator electrically insulating and permeable to zinc ions separating the positive and negative compartments; and

    an electrolyte comprising water and having a salt of zinc dissolved therein.

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