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Title: Nickel hydroxide positive electrode for alkaline rechargeable battery

Patent ·
OSTI ID:1432810

Certain nickel hydroxide active cathode materials for use in alkaline rechargeable batteries are capable of transferring >1.3 electrons per Ni atom under reversible electrochemical conditions. The specific capacity of the nickel hydroxide active materials is for example .gtoreq.325 mAh/g. The cathode active materials exhibit an additional discharge plateau near 0.8 V vs. a metal hydride (MH) anode. Ni in an oxidation state of less than 2, such as Ni.sup.1+, is able to participate in electrochemical reactions when using the present cathode active materials. It is possible that up to 2.3 electrons, up to 2.5 electrons or more may be transferred per Ni atom under electrochemical conditions.

Research Organization:
US Department of Energy (USDOE), Washington, DC (United States). Advanced Research Projects Agency-Energy (ARPA-E)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000386
Assignee:
BASF Corporation (Florham Park, NJ)
Patent Number(s):
9,935,315
Application Number:
14/614,753
OSTI ID:
1432810
Resource Relation:
Patent File Date: 2015 Feb 05
Country of Publication:
United States
Language:
English

References (11)

Chemically and compositionally modified solid solution disordered multiphase nickel hydroxide positive electrode for alkaline rechargeable electrochemical cells patent September 1994
Nickel metal hydride battery containing a modified disordered multiphase nickel aluminum based positive electrode patent October 1996
Nickel metal hybride battery containing a modified disordered multiphase nickel hydroxide positive electrode patent October 1996
Beta to gamma phase cycleable electrochemically active nickel hydroxide material patent May 1999
Active materials for the positive electrode in alkaline storage batteries patent March 2000
Structurally modified nickel hydroxide material and method for making same patent July 2000
Nickel hydroxide positive electrode material exhibiting improved conductivity and engineered activation energy patent May 2001
Composite positive electrode material and method for making same patent-application September 2001
Alkaline Storage Battery, Positive Electrode Material For Alkaline Storage Battery, And Method For Manufacturing Positive Electrode Material For Alkaline Storage Battery patent-application April 2014
Electrochemical and Spectroscopic Evidence on the Participation of Quadrivalent Nickel in the Nickel Hydroxide Redox Reaction journal January 1989
Phase Stability of Nickel Hydroxides and Oxyhydroxides journal January 2006