US 12,438,139 B2
Positive electrode slurry, positive electrode, secondary battery, and positive electrode manufacturing method
Shinji Mino, Osaka (JP); Eisuke Sato, Osaka (JP); Yoshinori Sakai, Hyogo (JP); and Kazutoshi Utsumiya, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/415,224
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Nov. 29, 2019, PCT No. PCT/JP2019/046699
§ 371(c)(1), (2) Date Jun. 17, 2021,
PCT Pub. No. WO2020/137349, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 2018-246688 (JP), filed on Dec. 28, 2018.
Prior Publication US 2022/0069272 A1, Mar. 3, 2022
Int. Cl. H01M 4/04 (2006.01); H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/0416 (2013.01) [H01M 4/364 (2013.01); H01M 2004/028 (2013.01); H01M 4/0409 (2013.01); H01M 4/62 (2013.01); H01M 10/0525 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A positive electrode slurry, comprising:
a positive electrode material mixture; and an organic dispersion medium as a sole dispersion medium for dispersing the positive electrode material mixture, wherein the organic dispersion medium is an organic compound,
the positive electrode material mixture comprising: a lithium-containing composite oxide containing a transition metal element as a positive electrode active material; an electrically conductive agent; a binder; and an additive,
the additive including a compound intramolecularly having a polyether group and an acidic group and free of an amine, wherein
the acidic group includes at least a sulfonic acid group.