METHODS FOR FABRICATION OF INTERCALATED LITHIUM BATTERIES

摘要

A method for fabricating intercalated lithium batteries in open air deposits a thin dense layer of amorphous solid-state lithium boride electrolyte directly onto a negative electrode via flame spray pyrolysis. In one embodiment, the negative electrode is attached to a prefabricated positive electrode via hot pressing (embossing), thus forming an intercalated lithium battery. The method significantly improves upon current methods of fabricating thin film solid state batteries by permitting fabrication without the aid of a controlled environment, thereby allowing for significantly cheaper fabrication than prior batch methods.

主权项

1. A method for fabricating an intercalated lithium battery without the assistance of a controlled environment comprising the steps of:
(a) providing a substrate to serve as the negative electrode having at least one surface to be coated; (b) forming a layer of amorphous LiBO2 (lithium metaborate) on the at least one surface by:
mixing a solution of a combustible fluid with fluid-soluble lithium and boron compounds to dissolve the compounds in the fluid to form a reagent mixture;spraying the reagent mixture through a nozzle to form a liquid spray containing the reagent mixture;passing the spray through a flame to combust the reagent mixture, thereby forming heated lithium metaborate;depositing the lithium metaborate onto the substrate at a temperature between 750C and 1100C to form an amorphous lithium metaborate coating on the substrate; (c) removing the substrate from the flame following deposition; and (d) adhering a positive electrode configured to accept lithium ions to the at least one surface to form an intercalated lithium battery.