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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:
USDOE 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
Country of Publication:
United States
Language:
English

References (2)

Phase Stability of Nickel Hydroxides and Oxyhydroxides journal January 2006
Electrochemical and Spectroscopic Evidence on the Participation of Quadrivalent Nickel in the Nickel Hydroxide Redox Reaction journal January 1989

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