US 12,424,623 B2
Active material, negative electrode active material, and fluoride ion secondary battery
Tomoyuki Komori, Osaka (JP)
Assigned to PANASONIC HOLDINGS CORPORATION, Osaka (JP)
Filed by Panasonic Corporation, Osaka (JP)
Filed on May 21, 2021, as Appl. No. 17/326,384.
Application 17/326,384 is a continuation of application No. PCT/JP2019/039068, filed on Oct. 3, 2019.
Claims priority of application No. 2019-011993 (JP), filed on Jan. 28, 2019.
Prior Publication US 2021/0273222 A1, Sep. 2, 2021
Int. Cl. H01M 4/58 (2010.01); H01M 4/04 (2006.01); H01M 10/36 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/58 (2013.01) [H01M 4/0407 (2013.01); H01M 10/36 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An active material comprising:
a composite metal fluoride containing Al, F, and Ti, wherein
the active material is capable of occluding and releasing fluoride ions, and
the composite metal fluoride is represented by a compositional formula:
Al1-xTixFy,
where x satisfies 0.15≤x≤0.3 and y satisfies 2≤y≤4.