US 11,984,597 B2
Sodium ion secondary battery
Keita Niitani, Shizuoka-ken (JP); Shin Ushiroda, Susono (JP); Hiroko Kuwata, Susono (JP); and Masato Hozumi, Mishima (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Apr. 21, 2021, as Appl. No. 17/236,593.
Claims priority of application No. 2020-105307 (JP), filed on Jun. 18, 2020.
Prior Publication US 2021/0399303 A1, Dec. 23, 2021
Int. Cl. H01M 4/60 (2006.01); H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01M 10/054 (2010.01); H01M 10/0562 (2010.01)
CPC H01M 4/60 (2013.01) [H01M 4/364 (2013.01); H01M 4/587 (2013.01); H01M 10/054 (2013.01); H01M 10/0562 (2013.01); H01M 2300/0068 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A sodium ion secondary battery comprising:
a cyclic organic compound as an active material; and
a complex hydride as a solid electrolyte,
wherein the cyclic organic compound has at least two carbonyl groups —C(═O)—, and the at least two carbonyl groups are bonded via a single bond or at least one conjugated double bond, and
wherein the complex hydride includes NaCB9H10, NaCB11H12, or NaAlH4.