US 11,670,775 B2
Positive electrode material and battery
Izuru Sasaki, Kyoto (JP); Akihiro Sakai, Nara (JP); Yuta Sugimoto, Hyogo (JP); and Akinobu Miyazaki, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Jun. 27, 2020, as Appl. No. 16/914,333.
Application 16/914,333 is a continuation of application No. PCT/JP2018/041899, filed on Nov. 13, 2018.
Claims priority of application No. JP2018-000430 (JP), filed on Jan. 5, 2018.
Prior Publication US 2020/0328467 A1, Oct. 15, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/62 (2006.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01); H01M 4/525 (2010.01); H01M 4/131 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/62 (2013.01) [H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 2004/028 (2013.01); H01M 2300/008 (2013.01); H01M 2300/0071 (2013.01); H01M 2300/0094 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A positive electrode material, comprising:
particles of a positive electrode active material;
a coating layer surrounding a surface of the particles of the positive electrode active material, and comprising an oxide solid electrolyte; and
particles of a first solid electrolyte material located on a surface of the particles of the coated positive electrode active material, wherein
the first solid electrolyte material is represented by the composition formula LiαMβXγ,
where
2.7≤α≤3,
1≤β≤1.1,
γ=6,
2≤γ/α≤2.22,
M is at least one kind selected from the group consisting of B, Si, Ge, As, Sb, Te, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Al, Ga, Tl, Sn, Pb, and Bi, and
X is at least one kind selected from the group consisting of Cl, Br, and I.