Nanoarchitectured 3D cathodes for Li-Ion microbatteries

Manikoth M. Shaijumon (1, 2) , Emilie Perre (2) , Barbara Daffos (2) , Pierre-Louis Taberna (2) , Jean‐marie Tarascon (3) , Patrice Simon (2)

1 IISER TVM - Indian Institute of Science Education and Research Thiruvananthapuram
2 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
3 LRCS - Laboratoire réactivité et chimie des solides - UMR CNRS 7314

Microbatteries with large area capacity and no power limitation can be obtained by designing 3D structured batteries. 3D electrodes composed of 30 nm-thick films of LiCoO2 coating free-standing columns of Al current collector were achieved. By comparison with a planar electrode presenting an equivalent nominal capacity, a 3D electrode exhibits improved capacity retention: 68% of the nominal capacity at 8C instead of 11%.

Mots clés: Energy storage; Batteries; Microbatteries; Nanostructured cathodes; Electrode position

Domaines: Génie chimique; Micro et nanotechnologies/Microélectronique; Energie électrique

Manikoth M. Shaijumon, Emilie Perre, Barbara Daffos, Pierre-Louis Taberna, Jean‐marie Tarascon, et al.. Nanoarchitectured 3D cathodes for Li-Ion microbatteries. Advanced Materials, 2010, vol. 22, pp. 4978-4981. ⟨10.1002/adma.201001922⟩. ⟨hal-00864835⟩