US 12,315,877 B2
Solid electrolyte and magnesium secondary battery using same
Takuji Tsujita, Osaka (JP); Yu Nishitani, Osaka (JP); Kensuke Nakura, Osaka (JP); Tohru Tsuruoka, Ibaraki (JP); Kazuya Terabe, Ibaraki (JP); and Jin Su, Ibaraki (JP)
Assigned to PANASONIC HOLDINGS CORPORATION, Osaka (JP); and NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Ibaraki (JP)
Filed by Panasonic Corporation, Osaka (JP); and National Institute for Materials Science, Ibaraki (JP)
Filed on Sep. 24, 2021, as Appl. No. 17/483,842.
Application 17/483,842 is a continuation of application No. PCT/JP2020/006632, filed on Feb. 19, 2020.
Claims priority of application No. 2019-062879 (JP), filed on Mar. 28, 2019.
Prior Publication US 2022/0029194 A1, Jan. 27, 2022
Int. Cl. H01M 10/0562 (2010.01); C01B 25/45 (2006.01); H01B 1/08 (2006.01); H01M 10/054 (2010.01); H01M 10/0568 (2010.01)
CPC H01M 10/0562 (2013.01) [C01B 25/45 (2013.01); H01B 1/08 (2013.01); H01M 10/054 (2013.01); H01M 10/0568 (2013.01); C01P 2002/50 (2013.01); C01P 2002/72 (2013.01); C01P 2006/40 (2013.01); H01M 2300/002 (2013.01); H01M 2300/0068 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electrode material of a magnesium secondary battery, the electrode material comprising:
an electrode active material particle of the magnesium secondary battery; and
a surface layer covering the electrode active material particle, wherein
the surface layer includes a covering material, and
the covering material includes a solid electrolyte having a composition represented by Mgx(POz)2, where 3.1≤x≤3.5 and 3≤z≤4.25, and comprising an amorphous part.
 
5. An electrode layer of a magnesium secondary battery, the electrode layer comprising:
an electrode active material layer including electrode active material particles of the magnesium secondary battery; and
a surface layer that is disposed on one principal surface of the electrode active material layer and includes a covering material covering an electrode active material of the magnesium secondary battery,
wherein the covering material includes a solid electrolyte having a composition represented by Mgx(POz)2, where 3.1≤x≤3.5 and 3≤z≤4.25, and comprising an amorphous part.