Patent ID: 9735445
Date: 2017-08-15
CPC Classifications: H01M,Y02E

Claim:
1. An alkali metal-ion battery or alkali metal battery, wherein said alkali metal is selected from sodium (Na), potassium (K), a combination of Na and K, a combination of Na and/or K with lithium (Li) and said alkali metal does not include lithium alone; said battery comprising: (a) an anode having an anode active material and an optional conductive additive dispersed in a first liquid electrolyte to form an anode slurry that is disposed in pores of a 3D porous anode current collector, wherein said 3D porous anode current collector has at least 80% by volume of pores; (b) a cathode having a cathode active material and an optional conductive additive dispersed in a second liquid electrolyte to form a cathode slurry that is disposed in pores of a 3D porous cathode current collector which has at least 80% by volume of pores; and (c) a separator disposed between said anode and said cathode; wherein an anode thickness-to-anode current collector thickness ratio is from 0.8/1 to 1/0.8 and/or a cathode thickness-to-cathode current collector thickness ratio is from 0.8/1 to 1/0.8, and wherein said anode active material or said cathode active material constitutes an electrode active material loading greater than 10 mg/cm 2 , said anode active material and said cathode active material combined exceeds 40% by weight of said battery, and/or said 3D porous anode current collector or cathode current collector has a thickness no less than 200 μm.