Invention Grant
- Patent Title: Nickel-metal hydride battery
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Application No.: US15712078Application Date: 2017-09-21
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Publication No.: US10658660B2Publication Date: 2020-05-19
- Inventor: Suguru Muraki , Yuki Sakito , Hiroyuki Sakamoto
- Applicant: PRIMEARTH EV ENERGY CO., LTD.
- Applicant Address: JP Kosai-Shi
- Assignee: PRIMEARTH EV ENERGY CO., LTD.
- Current Assignee: PRIMEARTH EV ENERGY CO., LTD.
- Current Assignee Address: JP Kosai-Shi
- Agency: Maschoff Brennan
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@362214dd com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7c94a04b
- Main IPC: H01M4/38
- IPC: H01M4/38 ; H01M10/44 ; H01M4/24 ; H01M4/36 ; H01M10/34 ; H01M10/42 ; C22C19/03

Abstract:
A nickel-metal hydride battery is provided with a positive electrode and a negative electrode including hydrogen absorbing alloys. The hydrogen absorbing alloys of the negative electrode include a first hydrogen absorbing alloy and a second hydrogen absorbing alloy having a higher hydrogen equilibrium dissociation pressure than the first hydrogen absorbing alloy. Each hydrogen absorbing alloy includes an element A having high affinity for hydrogen and an element B having low affinity for hydrogen. The ratio of a substance amount of the element B to a substance amount of the element A is greater in the second hydrogen absorbing alloy than the first hydrogen absorbing alloy.
Public/Granted literature
- US20180090754A1 NICKEL-METAL HYDRIDE BATTERY Public/Granted day:2018-03-29
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