CPC H01M 4/1395 (2013.01) [H01L 21/02123 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 4/405 (2013.01)] | 15 Claims |
1. An energy storage device comprising:
a composite electrode comprising:
a silicon-based electrode;
a semi-dielectric layer directly disposed on the silicon-based electrode, the semi-dielectric layer having a semi-dielectric layer thickness between 15 nanometers (nm) and 30 nm;
a molten-ion conductive layer disposed on the semi-dielectric layer, the molten-ion conductive layer and semi-dielectric layer forming a layer pair, the molten-ion conductive layer being made of a lithium containing salt that is highly conductive to lithium ions, the layer pair being on a trench bottom of a trench in the silicon-based electrode;
an anode disposed on the composite electrode and within the trench;
an electrolyte layer disposed on the anode;
a cathode electrode disposed on the electrolyte layer; and
a separator layer preventing electrode flow between the anode and the cathode, wherein the composite electrode has a resistivity less than 40 ohm-cm2.
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