Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Florida State University Research Foundation, Inc.

Hyeokjo Gwon

Jusik Kim

Sungkyun Jung

Ryounghee Kim

SeWon Kim

Lincoln James Miara

Yan E Wang

Kitae Park

Jinkyu Kang

Euncheol Do

Hyunchul Lee

Sangmin Ji

Gabin Yoon

Soyeon Kim

Hyunseok Kim

Naoki Suzuki

Wonseok Chang

Soojin Park

Hongsoo Choi

Satoshi Fujiki

Tomoyuki Tsujimura

Yan-Yan Hu

Jeong-Ju Cho

Sung-Kyun Jung

Jeongju Cho

Sawankumar Patel

Victor Roev

Wooyoung Yang

Myungjin Lee

Junhwan Ku

Minsang Kim

Changduk Kang

Chilhee Chung

Valentina Lacivita

Sunghaeng Lee

Yan Wang

Nagjong Kim

Sewon Kim

A solid electrolyte including a compound represented by Formula 1 or 3, the compound having a glass transition temperature of −30° C. or less, and a glass or glass-ceramic structure,AQX-GaM(FCl)Z  Formula 1

Solid electrolyte, method of preparing the same, and electrochemical device including the same

A solid-state ion conductor includes a compound of Formula 1:LiNClX  Formula 1wherein, in Formula 1, X is an anion having an average oxidation state of n and is −3≤n≤−1, and is at least one of Br, I, F, O, S, or P; and 1≤a≤4, 1≤b≤3, 0<c≤3, and 4.8≤(a+b+c)≤5.2.

Solid-state electrolyte, solid-state battery including the electrolyte, and method of making the same

A solid ion conductor including a garnet-type oxide represented by LiM1LaM2ZrM3M4OX(Formula 1), a solid electrolyte including the solid ion conductor, an electrochemical device including the ion conductor, and a method of preparing the ion conductor are disclosed. In Formula 1, M1 is a monovalent cation, a divalent cation, a trivalent cation, or a combination thereof, M2 is a monovalent cation, a divalent cation, a trivalent cation, or a combination thereof, M3 is a divalent cation, a trivalent cation, a tetravalent cation, a pentavalent cation, a hexavalent cation, or a combination thereof, M4 is Ir, Ru, Mn, Sn, or a combination thereof, X is a monovalent anion, a divalent anion, a trivalent anion, or a combination thereof, and 6≤A≤8, 0≤B<2, 2.8≤C≤3, 0≤D≤0.2, 0<E<2.0, 0<F<2.0, 0<G≤0.2, 9≤H≤12, and 0≤I≤2 are satisfied.

Solid ion conductor, solid electrolyte including the same, electrochemical device including the same, and preparation method thereof

A solid electrolyte includes: a crystalline composite, wherein the composite is a compound represented by Formula 1, a compound represented by Formula 2, or a combination thereof:3LiF-M1O  Formula 1

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

Solid conductor, preparation method thereof, solid electrolyte including the solid conductor, and electrochemical device including the solid conductor

A composite solid electrolyte including a first solid electrolyte layer including a halide solid electrolyte, a second solid electrolyte layer including an oxide solid electrolyte, a lithium ion-conductive interlayer between the first solid electrolyte layer and the second solid electrolyte layer, wherein the lithium ion-conductive interlayer includes a composition in which a reaction energy of the lithium ion-conductive interlayer with respect to the first solid electrolyte is −50 meV/atom or greater.

Composite solid electrolyte, method of preparing the same, and electrochemical device including the same

A composite solid electrolyte including: a porous nanostructure; and a solid electrolyte disposed on a surface of the porous nanostructure, wherein the composite solid electrolyte satisfies Equation 10<<4  Equation 1wherein Tis a thickness of the solid electrolyte, and D is an average diameter of pores of the porous nanostructure.

Composite solid electrolyte, method of preparing composite solid electrolyte, and electrochemical battery including composite solid electrolyte

Provided herein is a lithium battery including: a cathode including a cathode active material; an anode including an anode active material; an electrolyte between the cathode and the anode; and a separator impregnated with the electrolyte, wherein the separator includes carboxyl group-containing microbial cellulose nanofibers, and wherein a differential scanning calorimetry (DSC) thermogram of the separator evinces an exothermic reaction peak, represented by a differential value (dH/dT), at a temperature in a range of about 150° C. to about 200° C.

Lithium battery

A positive electrode includes a composite material including a positive active material and a coating layer on a surface of the positive active material, wherein the coating layer includes a copolymer including a first repeating unit represented by Formula 1 below and a second repeating unit represented by Formula 2 below: wherein Ar, Rto R, A, A, Y, m, and n are the same as defined in the specification.

Positive electrode and lithium battery including the same

An oxide including a compound represented by Formula 1:(LiM1)(M2)(M3)OX&#x2003;&#x2003;Formula 1wherein, in Formula 1,

Oxide, method of preparing the same, solid electrolyte including the oxide, and electrochemical device including the oxide

An all-solid secondary battery, including: a cathode; an anode; and a solid electrolyte layer disposed between the cathode and the anode, wherein the anode comprises an anode current collector; a first anode active material layer in contact with the anode current collector and comprising a first metal; a second anode active material layer disposed between the first anode active material layer and the solid electrolyte layer and comprising a carbon-containing active material; and a contact layer between the second anode active material layer and the solid electrolyte layer, and disposed such that the contact layer prevents contact between the second anode active material layer and the solid electrolyte layer, wherein the contact layer comprises a second metal, and has a thickness less than a thickness of the first anode active material layer.

All-solid secondary battery and method of preparing the same

A solid-state ion conductor includes a compound of Formula 1:LiNClX&#x2003;&#x2003;Formula 1wherein, in Formula 1, X is an anion having an average oxidation state of n and is &#x2212;3&#x2264;n&#x2264;&#x2212;1, and is at least one of Br, I, F, O, S, or P; and 1&#x2264;a&#x2264;4, 1&#x2264;b&#x2264;3, 0&#x3c;c&#x2264;3, and 4.8&#x2264;(a+b+c)&#x2264;5.2.

A solid electrolyte including a compound represented by Formula 1 or 3, the compound having a glass transition temperature of &#x2212;30&#xb0; C. or less, and a glass or glass-ceramic structure,AQX&#x2014;GaM(FCl)Z&#x2003;&#x2003;Formula 1wherein, in Formula 1,

A solid ion conductor compound includes a compound represented by Formula 1:LiHfMOZ&#x2003;&#x2003;Formula 1where, in Formula 1, M is an element having an oxidation number of a and a is 5, 6, or a combination thereof, Z is an element having an oxidation number of &#x2212;1, and 0&#x3c;x&#x3c;2, 0&#x2264;y&#x2264;2, and 0&#x3c;w&#x3c;6 and w=[(a&#x2212;4)&#xd7;x]+y.

Solid ion conductor compound, solid electrolyte comprising the same, electrochemical cell comprising the solid ion conductor compound, and preparation method thereof

Growing community of inventors

Hwaseong-si, South Korea

Hyeokjo Gwon