Issue 27, 2011

3D lithium ion batteries—from fundamentals to fabrication

Abstract

3D microbatteries are proposed as a step change in the energy and power per footprint of surface mountable rechargeable batteries for microelectromechanical systems (MEMS) and other small electronic devices. Within a battery electrode, a 3D nanoarchitecture gives mesoporosity, increasing power by reducing the length of the diffusion path; in the separator region it can form the basis of a robust but porous solid, isolating the electrodes and immobilising an otherwise fluid electrolyte. 3D microarchitecture of the whole cell allows fabrication of interdigitated or interpenetrating networks that minimise the ionic path length between the electrodes in a thick cell. This article outlines the design principles for 3D microbatteries and estimates the geometrical and physical requirements of the materials. It then gives selected examples of recent progress in the techniques available for fabrication of 3D battery structures by successive deposition of electrodes, electrolytes and current collectors onto microstructured substrates by self-assembly methods.

Graphical abstract: 3D lithium ion batteries—from fundamentals to fabrication

Article information

Article type
Feature Article
Submitted
15 Dec 2010
Accepted
29 Mar 2011
First published
03 May 2011

J. Mater. Chem., 2011,21, 9876-9890

3D lithium ion batteries—from fundamentals to fabrication

M. Roberts, P. Johns, J. Owen, D. Brandell, K. Edstrom, G. El Enany, C. Guery, D. Golodnitsky, M. Lacey, C. Lecoeur, H. Mazor, E. Peled, E. Perre, M. M. Shaijumon, P. Simon and P. Taberna, J. Mater. Chem., 2011, 21, 9876 DOI: 10.1039/C0JM04396F

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