Method and apparatus for solid-state microbattery...

H - Electricity – 01 – M

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H01M 10/058 (2010.01)

Patent

CA 2658092

A method for producing a thin film lithium battery is provided, comprising applying a cathode current collector, a cathode material, an anode current collector, and an electrolyte layer separating the cathode material from the anode current collector to a substrate, wherein at least one of the layers contains lithiated compounds that is patterned at least in part by a photolithography operation comprising removal of a photoresist material from the layer containing lithiated compounds by a process including a wet chemical treatment. Additionally, a method and apparatus for making lithium batteries by providing a first sheet that includes a substrate having a cathode material, an anode material, and a LiPON barrier/electrolyte layer separating the cathode material from the anode material; and removing a subset of first material to separate a plurality of cells from the first sheet. In some embodiments, the method further includes depositing second material on the sheet to cover the plurality of cells; and removing a subset of second material to separate a plurality of cells from the first sheet.

La présente invention concerne un procédé de production de batterie au lithium à pellicule mince comprenant l'application à un substrat d'un collecteur de courant de cathode, d'un matériau de cathode, d'un collecteur de courant d'anode et d'une couche d'électrolyte qui sépare le matériau cathode du collecteur de courant d'anode, sachant qu'au moins une des couches contient des composants lithiés par un procédé qui comprend un traitement chimique humide. Il s'agit en outre d'un procédé et d'un appareil de fabrication de batteries au lithium qui consiste à fournir une première pellicule qui comprend un substrat comportant un matériau de cathode, un matériau d'anode et une pellicule séparatrice de phosphate de lithium à azote ajouté (LiPON)/électrolyte qui sépare le matériau de cathode du matériau d'anode, ainsi que le retrait d'un sous-ensemble du premier matériau pour séparer une pluralité de cellules de la première pellicule. Dans certains modes de réalisation, le procédé comprend aussi le dépôt sur la pellicule d'un second matériau pour couvrir la pluralité de cellules et le retrait d'un sous-ensemble de second matériau pour séparer une pluralité de cellules de la première couche.

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