US 12,438,188 B2
Solid state batteries and methods of making thereof
Jeong Woo Oh, San Diego, CA (US); Min Sang Song, Daejeon (KR); Ping Liu, San Diego, CA (US); Ke Zhou, San Diego, CA (US); and Mengchen Liu, San Diego, CA (US)
Assigned to LG Energy Solution, Ltd., Seoul (KR); and The Regents of the University of California
Filed by LG Energy Solution, Ltd., Seoul (KR); and The Regents of the University of California, Oakland, CA (US)
Filed on Dec. 6, 2024, as Appl. No. 18/972,560.
Claims priority of provisional application 63/554,087, filed on Feb. 15, 2024.
Prior Publication US 2025/0266495 A1, Aug. 21, 2025
Int. Cl. H01M 10/0562 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 10/0562 (2013.01) [H01M 10/0525 (2013.01); H01M 2220/20 (2013.01); H01M 2300/0068 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A solid state battery comprising:
a cathode;
an anode;
a solid electrolyte layer positioned between the cathode and the anode and configured to enable transport of lithium ions between the cathode and the anode,
wherein the solid electrolyte layer comprises:
particles comprising a sulfide-containing material; and
an additive material represented by A-B-C (Chemical Formula 1),
wherein A is a thiol group (S—H) or a leaving group,
wherein A is configured to interact with sulfur of the sulfide-containing material of the particles, wherein at least part of the additive material is interposed between two immediately neighboring ones of the particles,
wherein when A is a leaving group, A is selected from the group consisting of chloride, bromide, iodide, tosylate (p-toluenesulfonate) or mesylate (methanesulfonate) groups, acetate or trifluoroacetate groups, phosphate or phosphonate groups, carboxylate groups, alkoxide groups, amine groups, cyano (CN) groups, azide (N3) groups, sulfonate groups, a triethoxysilyl moiety, trimethoxysilyl, and combinations thereof,
wherein B is a substituted or unsubstituted C3-C20 alkylene group, wherein B comprises a group derived from an alkane selected from the group consisting of Propane, n-Butane (CH3CH2CH2CH3), Isobutane (CH3CH(CH3)2), n-Pentane (CH3(CH2)3CH3), Isopentane (2-methylbutane, CH3CH2CH(CH3)2), Neopentane (2,2-dimethylpropane, (CH3)4C), n-Hexane (CH3(CH)4CH3), 2-Methylpentane (CH3CH2CH2CH(CH3)CH3), 3-Methylpentane (CH3CH2CH(CH3)CH2CH3), 2,2-Dimethylbutane (CH3C(CH3)2CH2CH3), 2,3-Dimethylbutane (CH3CH(CH3)CH(CH3)CH3), n-Heptane (CH3(CH2)5CH3), 2-Methylhexane (CH3CH2CH2CH2CH(CH3)CH3), 3-Methylhexane (CH3CH2CH2CH(CH3)CH2CH3), 2,2-Dimethylpentane (CH3C(CH3)2CH2CH2CH3), 2,3-Dimethylpentane (CH3CH(CH3)CH2CH(CH3)CH3), 2,4-Dimethylpentane (CH3CH(CH3)CH2CH2CH(CH3)CH3), 3,3-Dimethylpentane (CH3CH2CH(CH3)2CH2CH3), 3-Ethylpentane (CH3CH2CH2CH(CH2CH3)CH3), 2,2,3-Trimethylbutane ((CH3)2CHCH2CH(CH3)2), n-Octane (CH3(CH2)6CH3), 2-Methylheptane (CH3CH2CH2CH2CH2CH(CH3)CH3), 3-Methylheptane (CH3CH2CH2CH2CH(CH3)CH2CH3), 4-Methylheptane (CH3CH2CH2CH(CH3)CH2CH2CH3), 2,2-Dimethylhexane (CH3C(CH3)2(CH2)4CH3), 2,3-Dimethylhexane (CH3CH(CH3)CH2CH2CH(CH3)CH3), 2,4-Dimethylhexane (CH3CH(CH3)CH2CH2CH2CH(CH3)CH3), 3,3-Dimethylhexane (CH3CH2CH(CH3)2CH2CH2CH3), 3,4-Dimethylhexane (CH3CH2CH(CH3)CH2CH(CH3)CH3), 2,2,4-Trimethylpentane (isooctane, CH3CH(CH3)2CH2CH(CH3)2), 2-Ethylhexane (CH3CH2CH(CH2CH3)CH2CH3), n-Nonane (CH3(CH2)7CH3), 2-Methyloctane (CH3CH2CH2CH2CH2CH2CH(CH3)CH3), 3-Methyloctane (CH3CH2CH2CH2CH2CH(CH3)CH2CH3), 2,2-Dimethylheptane (CH3C(CH3)2(CH2)5CH3), 2,3-Dimethylheptane (CH3CH(CH3)CH2CH2CH2CH2CH(CH3)CH3), 2,4-Dimethylheptane (CH3CH(CH3)CH2CH2CH(CH3)CH2CH3), 2,2,4-Trimethylhexane (CH3C(CH3)2CH2CH(CH3)2CH2CH3), 3,3-Dimethylheptane (CH3CH2CH(CH3)2CH2CH2CH2CH3), 3-Ethylheptane (CH3CH2CH2CH(CH2CH3)CH2CH3), n-Decane (CH3(CH2)8CH3), 2-Methylnonane (CH3CH2CH2CH2CH2CH2CH2CH(CH3)CH3), 3-Methylnonane (CH3CH2CH2CH2CH2CH2CH(CH3)CH2CH3), 2,2-Dimethyloctane (CH3C(CH3)2(CH2)6CH3), 2,3-Dimethyloctane (CH3CH(CH3)CH2CH2CH2CH2CH2CH(CH3)CH3), 2,4-Dimethyloctane (CH3CH(CH3)CH2CH2CH2CH(CH3)CH2CH3), 2,5-Dimethyloctane (CH3CH2CH(CH3)CH2CH2CH2CH2CH3), 3,3-Dimethyloctane (CH3CH2CH(CH3)2CH2CH2CH(CH3)CH2CH3), 2-Ethyloctane (CH3CH2CH(CH2CH3)CH2CH2CH3), n-Undecane (C11H24) and its branched isomers, n-Dodecane (C12H26) and its branched isomers, n-Tridecane (C13H28) and its branched isomers, n-Tetradecane (C14H30) and its branched isomers, n-Pentadecane (C15H32) and its branched isomers, n-Hexadecane (C16H34) and its branched isomers, n-Heptadecane (C17H36) and its branched isomers, n-Octadecane (C18H38) and its branched isomers, n-Nonadecane (C19H40) and its branched isomers, and n-Eicosane (C20H42) and its branched isomers,
wherein when B is a substituted C3-C20 alkylene group, at least one hydrogen atom of the group derived from the alkane is substituted by a substituent, wherein the substituent is selected from the group consisting of Fluoro (F), Chloro (—Cl), Bromo (—Br), Iodo (—I), Hydroxyl (—OH), Ether (—OR), Aldehyde (—CHO), Ketone (—CO)), Carboxyl (—COOH), Ester (—COOR), Peroxide (—O—O—), Amino (—NH2), Secondary amine (—NHR), Tertiary amine (—NR2)), Nitro (—NO2), Cyanide (—CN), Amide (—CONH2), substituted amides (—CONHR, —CONR2), Thiol (—SH), Sulfide (—SR), Sulfonyl (—SO2R), Sulfate (—SO4R), Phosphate (—PO4R2), Phosphine (—PR2); Alkyl (—R), Alkylene (—R═R), Cycloalkyl (—R), Aryl (—Ar), Benzyl (—C6H5CH2), Alkenyl (—C═C—), Alkynyl (—C≡C—), Aromatic rings, Acyl (—COR); Sulfonyl (—SO2R); Carbamoyl (—CONH2); Isonitrile (—NC); Azide (—N3), Perfluoroalkyl (—CF3) and other fluoroalkyl chains, Acetal (—RCH(OR)2), Ketal (—RC(OR)2R), Organometallic groups, and combinations thereof, and
wherein C is a phosphate or a phosphate salt, wherein the phosphate salt is a salt with at least one selected from the group consisting of sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), calcium (Ca), magnesium (Mg), strontium (Sr), barium (Ba), iron (II) (Fe II), iron(III), (Fe III), copper (I) (Cu I), copper(II) (Cu II), zinc (Zn), manganese (Mn), ammonium (NH4), methylammonium (CH3NH3), dimethylammonium ((CH3)2NH2), trimethylammonium ((CH3)3N+), pyridinium (C5H5NH+), lead(II) (Pb), mercury(II) (Hg), cadmium (Cd), lanthanum (La), cerium (Ce), uranium (U), sodium-calcium (Na—Ca), potassium-magnesium (K—Mg), tetramethylammonium (N(CH3)4+), imidazolium (C3H4NH2+), phosphonium (P+(CH3)4), and guanidinium (C(NH2)3+).