The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2019
Filed:
Jan. 06, 2016
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Yuhao Lu, Camas, WA (US);
Jong-Jan Lee, Camas, WA (US);
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
A method is provided for forming a metal-ion battery electrode with large interstitial spacing. A working electrode with hexacyanometallate particles overlies a current collector. The hexacyanometallate particles have a chemical formula AM1M2(CN).zHO, and have a Prussian Blue hexacyanometallate crystal structure, where A is either alkali or alkaline-earth cations. M1 and M2 are metals with 2+ or 3+ valance positions. The working electrode is soaked in an organic first electrolyte including a salt including alkali or alkaline earth cations. A first electric field is created in the first electrolyte between the working electrode and a first counter electrode, causing A cations and water molecules to be simultaneously removed from interstitial spaces in the Prussian Blue hexacyanometallate crystal structure, forming hexacyanometallate particles having the chemical formula of AM1M2(CN).z'HO, where m′<m and z′<z, overlying the working electrode.