A solid state 3-D microbattery based on Cu 2Sb nanopillar anodes

• A 3D-microbattery consisting of nanostructured Cu 2Sb, a solid state electrolyte and a metallic lithium foil has been investigated electrochemically. Thin-film Cu 2Sb electrodes have been prepared by heat treatment of electrodeposited Sb on both 2D and 3D-nanopillar Cu substrates. A solid electrolyte based on UV cross-linked blends of poly(propylene glycol) diacrylate and polyetheramine (glyceryl poly(oxypropylene)) was thereafter deposited onto the electrode material, and then cycled against Li. It is demonstrated that the discharge capacity per footprint area for the 3D-nanopillar samples increased more than 10 times as compared to that of the 2D system.

Ämnesord

NATURVETENSKAP  -- Kemi -- Oorganisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)

Nyckelord

3D-microbattery

Anode material

Cu 2Sb

Polymer electrolyte

2-D systems

Cu substrate

Diacrylates

Discharge capacities

Electrode material

Metallic lithium

Microbattery

NanoPillar

Nanostructured Cu

Poly(propylene glycol)

Solid-state electrolyte

Anodes

Ethers

Lithium

Nanostructures

Solid electrolytes

Three dimensional computer graphics

Copper

Inorganic chemistry

Oorganisk kemi

Kemi med inriktning mot oorganisk kemi

Chemistry with specialization in Inorganic Chemistry

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