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Title: Metal cyanometallate electrode with shield structure

Abstract

A mechanism is presented for shielding a cathode in a metal cyanometallate battery. A battery is provided with an anode, a cathode, an electrolyte, and an ion-permeable membrane separating the anode from the cathode. The cathode is made up of a plurality of metal cyanometallate layers overlying the current collector. At least one of the metal cyanometallate layers is an active layer formed from an active material AXM1YM2Z(CN)N·MH2O, where “A” is an alkali metal, alkaline earth metal, or combination thereof. At least one of the metal cyanometallate layers is a shield layer comprising less than 50 percent by weight (wt %) active material. In response to applying an external voltage potential between the cathode and the anode, the method charges the battery. Upon discharge, the shield layer blocks metal particles from contacting active layers. Simultaneously, the shield layer transports metal ions from the electrolyte to the active layers.

Inventors:
; ;
Issue Date:
Research Org.:
Sharp Laboratories of America, Inc., Camas, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531924
Patent Number(s):
9406919
Application Number:
14/193,501
Assignee:
Sharp Laboratories of America, Inc. (Camas, WA)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
AR0000297
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014-02-28
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; 25 ENERGY STORAGE

Citation Formats

Lu, Yuhao, Wang, Long, and Lee, Jong-Jan. Metal cyanometallate electrode with shield structure. United States: N. p., 2016. Web.
Lu, Yuhao, Wang, Long, & Lee, Jong-Jan. Metal cyanometallate electrode with shield structure. United States.
Lu, Yuhao, Wang, Long, and Lee, Jong-Jan. Tue . "Metal cyanometallate electrode with shield structure". United States. https://www.osti.gov/servlets/purl/1531924.
@article{osti_1531924,
title = {Metal cyanometallate electrode with shield structure},
author = {Lu, Yuhao and Wang, Long and Lee, Jong-Jan},
abstractNote = {A mechanism is presented for shielding a cathode in a metal cyanometallate battery. A battery is provided with an anode, a cathode, an electrolyte, and an ion-permeable membrane separating the anode from the cathode. The cathode is made up of a plurality of metal cyanometallate layers overlying the current collector. At least one of the metal cyanometallate layers is an active layer formed from an active material AXM1YM2Z(CN)N·MH2O, where “A” is an alkali metal, alkaline earth metal, or combination thereof. At least one of the metal cyanometallate layers is a shield layer comprising less than 50 percent by weight (wt %) active material. In response to applying an external voltage potential between the cathode and the anode, the method charges the battery. Upon discharge, the shield layer blocks metal particles from contacting active layers. Simultaneously, the shield layer transports metal ions from the electrolyte to the active layers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {8}
}

Patent:

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