Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Massachusetts Institute of Technology

Sangbok Ma

Donghwa Seo

Dongmin Im

Hyunpyo Lee

Hyukjae Kwon

Wonsung Choi

Heungchan Lee

Mokwon Kim

Myungjin Lee

Dongjoon Lee

Taeyoung Kim

Victor Roev

Jungock Park

Joonhee Kim

Minsik Park

Kihyun Kim

Sungjin Lim

Hyunjin Kim

Yoonhyun Kwak

Paula T Hammond

Jonghoon Ka

Kyounghwan Choi

Hongsoo Choi

Hyunchul Lee

Sungjun Park

Younggyoon Ryu

Chibueze Vincent Amanchukwu

Maria Khiterer

Yang Shaohorn

A solid electrolyte includes: a first electrolyte layer including an inorganic lithium ion conductor; and a second electrolyte layer disposed on at least one side of the first electrolyte layer and including a compound represented by Formula 1Li(HfM)(POQ)  Formula 1wherein in Formula 1, M is at least one of a monovalent to a hexavalent element, wherein 0<a≤1, 0≤x<⅓, and 0≤y<2, and Q is F, Cl, Br, I, a pseudohalogen, or a combination thereof.

Solid electrolyte, preparation method thereof, lithium air battery including the solid electrolyte, and electrochemical device including the solid electrolyte

A composite cathode active material represented by Li(CoM1)PO(Formula 1) having an olivine structure, wherein a unit-cell volume of the composite cathode active material is in a range of about 283 Åto about 284.6 Å. A cathode including the composite cathode active material, and a secondary battery including the composite cathode active material are also disclosed. In Formula 1, M1 includes i) at least one of Sc, Ti, V, Cr, Cu, or Zn, and optionally at least one of Fe or Ni, and 0.9≤x≤1.1, 0.9≤y≤1.1, and 0<w≤0.3.

Composite cathode active material, method of preparing the same, cathode including the same, and secondary battery including the composite cathode active material

A positive electrode active material includes a lithium-transition metal composite phosphate including a first crystalline phase having a composition represented by Formula 1 and having an olivine structure, and a second crystalline phase having a composition represented by Formula 2 and having a pyrophosphate-containing structure, wherein the second crystalline phase is in an amount of greater than 0 mole percent and not greater than 50 mole percent with respect to a total number of moles of the first crystalline phase and the second crystalline phase, a positive electrode, a secondary battery:LiM1PO  Formula 1LiM2(PO)  Formula 2 In Formulas 1 and 2, 0.9≤x≤1.1, 0.9≤y≤1.1, 5.5≤a≤6.5, and 4.8≤b≤5.2, and M1 and M2 are each independently an element from Groups 3 to 11 in the 4th period of the Periodic Table of the Elements, or a combination thereof.

Composite positive electrode active material, method of preparing the same, positive electrode including the same, and secondary battery including the same

A cathode for an air battery includes a porous conductive material; and a base-resistant compound on a surface of the porous conductive material, the base-resistant compound having a 0 or positive Gibbs free energy at 2 V to 4.5 V vs Li/Li+ at a pH of about 7 to about 14.

Cathode including base-resistant compound and lithium-air battery including the same

A cathode active material includes a compound represented by Formula 1:Li(CoM)(PO)  Formula 1

Cathode active material, preparation method thereof, cathode including the same, and secondary battery

A perovskite material represented by Formula 1:LiAMO  Formula 1

Perovskite material, method of preparing the same, and secondary battery including the perovskite material

A solid electrolyte including: an oxide represented by Formula 1, Formula 2, Formula 3, or a combination thereof,LiM1O  Formula 1wherein, in Formula 1, M1 is hafnium, titanium, zirconium, or a combination thereof, and 0<x<1;LiM1M2O  Formula 2wherein, in Formula 2, M1 is hafnium, titanium, zirconium, or a combination thereof, M2 is at least one element having an oxidation number of a, and wherein a is an integer from 1 to 6, and 0<y<1; orLiM1OX  Formula 3wherein, in Formula 3, M1 is hafnium, titanium, zirconium, or a combination thereof, X is a halogen, a pseudohalogen, or a combination thereof, and 0<z<2.

Solid electrolyte, preparation method thereof, metal air battery including the same, and electrochemical device including the same

An ion conductor including: at least one oxide represented by Formulae 1 to 3LiMM′O  Formula 1wherein in Formula 1, M′ is an element of Group 2, an element of Group 3, an element of Group 5, an element of Group 12, an element of Group 13, a vacancy, or a combination thereof, with the proviso that when M is Zr, then x≠0, x′≠0 and M′ is Be, Ca, Sr, Ba, Ra, Cd, Hg, Cn, Ga, In, TI, an element of Group 3, an element of Group 5, or a combination thereof;LiM″OA′  Formula 2wherein in Formula 2, M″ is a Group 4 element, A′ includes at least one halogen, with the proviso that when M″ is Zr, y≠0,LiM′″O  Formula 3wherein in Formula 3, 0<z<1, and M″′ is a Group 4 element.

Ion conductor, and positive electrode, solid electrolyte, and lithium battery each including the ion conductor, and method of preparing the ion conductor

A cathode configured to use oxygen as a cathode active material, the cathode comprising a lithium-containing metal oxide comprising at least one of:

Cathode and lithium-air battery including the cathode

A lithium battery includes: a positive electrode having a positive active material; a negative electrode including lithium metal; and a solid electrolyte disposed therebetween. The solid electrolyte contains at least one oxide represented by LiMM'O(Formula 1), LiM&#x2033;OA&#x2032;(Formula 2), or LiM&#x2032;&#x2033;O(Formula 3), wherein and 0&#x2264;x23 1 and 0&#x2264;x&#x2032;&#x2264;1, M is a Group 4 element, and M&#x2032; is an element of Group 2, 3, 5, 12, or 13, a vacancy, or a combination thereof, with the proviso that when M is Zr, then x&#x2260;0, x&#x2032;&#x2260;0 and M&#x2032; is Be, Ca, Sr, Ba, Ra, Cd, Hg, Cn, Ga, In, TI, an element of Group 3 or 5, or a combination thereof; 0&#x2264;y&#x2264;1, M&#x2033; is a Group 4 element, and A&#x2032; includes at least one halogen, with the proviso that when M&#x2033; is Zr, then y&#x2260;0; and 0&#x3c;z&#x3c;1, and M&#x2032;&#x2033; is a Group 4 element.

A solid electrolyte including: an oxide represented by Formula 1LiMHfO&#x2003;&#x2003;Formula 1wherein, in Formula 1,

A solid electrolyte including: a compound represented by Formula 1,LiM1M2(POX)&#x2003;&#x2003;Formula 1

Solid electrolyte, preparation method thereof, lithium-air battery including the solid electrolyte, and electrochemical device including the solid electrolyte

A metallic salt including at least one anion having a heterocyclic aromatic structure represented by one of Formulae 1 to 3; and a metallic cation: wherein, in Formulae 1 to 3, each X is independently N, P, or As, one of Aand Ais an electron-donating group, and the other one is an electron-withdrawing group, ring Arand ring Arare as defined herein, L is a linker group as defined herein, m is an integer from 1 to 5, and n is an integer from 0 to 5.

Metallic salt containing anion having heterocyclic aromatic structure, method of preparing the metallic salt, and electrolyte and electrochemical device each including the metallic salt

A solid electrolyte includes an ion conductor represented by at least one of Formulae 1 to 3,LiM1O&#x2003;&#x2003;Formula 1wherein, in Formula 1,

Solid electrolyte, preparation method thereof, lithium air battery including the same, and electrochemical device including the same

A mixed conductor represented by FormulaAMO&#x2003;&#x2003;Formulawherein, in FormulaA is a monovalent cation, and M is at least one of a monovalent cation, a divalent cation, a trivalent cation, a tetravalent cation, a pentavalent cation, or a hexavalent cation,&#x2264;x&#x2264;&#x2264;y&#x2264;andwith the proviso that when M includes vanadium,and wherein the mixed conductor has an inverse spinel crystal structure.

Growing community of inventors

Suwon-si, South Korea

Sangbok Ma