Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Florida State University Research Foundation, Inc.

Ryounghee Kim

Jusik Kim

Hyeokjo Gwon

SeWon Kim

Sungkyun Jung

Donghan Kim

Yan E Wang

Lincoln James Miara

Jinhwan Park

Myungjin Lee

Byungjin Choi

Kitae Park

Jinkyu Kang

Wonseok Chang

Dongmin Im

Hyunseok Kim

Victor Roev

Euncheol Do

Hyunchul Lee

Sangmin Ji

Seoksoo Lee

Wooyoung Yang

Toshinori Sugimoto

Soojin Park

Byongyong Yu

Jayhyok Song

Dongwook Han

Yan-Yan Hu

Youngeal Kim

Seokgwang Doo

Jeongju Cho

Sawankumar Patel

Satoshi Maruyama

Junhwan Ku

Minsang Kim

Sung Heo

Changduk Kang

Kihong Kim

Kwangjin Park

Gabin Yoon

Chilhee Chung

Changhoon Jung

Guesung Kim

Anass Benayad

Sunghaeng Lee

Nagjong Kim

Sewon Kim

Provided are a cathode hybrid electrolyte for a solid secondary battery, a cathode including the cathode hybrid electrolyte, a method of preparing the cathode, and a solid secondary battery including the cathode hybrid electrolyte, wherein the cathode hybrid electrolyte includes an ion conductor represented by Formula 1, and an ionic liquid, where at least a portion of the anions of the ionic liquid comprise the same anionic moiety —Yof the ion conductor, where, in Formula 1, X, Rto R, Y, and n are the same as defined in the detailed description.

Cathode hybrid electrolyte for solid secondary battery, cathode including the cathode hybrid electrolyte, method of preparing the cathode, and solid secondary battery including the cathode hybrid electrolyte

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

An anode, a lithium battery including the anode, and a method of preparing the anode. The anode includes a current collector; a first anode layer disposed on the current collector; a second anode layer disposed on the first anode layer; and an inorganic protection layer disposed on the second anode layer, wherein an oxidation/reduction potential of the first anode layer and an oxidation/reduction potential of the second anode layer are different from each other.

Anode, lithium battery including anode, and method of preparing anode

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 are an oxide including a compound represented by Formula 1, a method of pre paring the same, a solid electrolyte including the oxide, and an electrochemical device including the oxide:LiTaAPMOX  Formula 1 wherein, in Formula 1, M is an element having an oxidation number of +3, A is an element having an oxidation number of +4, +5, or +6, or a combination thereof, when A is an element having an oxidation number of +4, a is 1+y+2x−z, when A is an element having an oxidation number of +5, a is 1+2x−z, when A is an element having an oxidation number of +6, a is 1−y+2x−z, X is a halogen atom or a pseudohalogen, and 0≤y<0.6, 0≤x<1, and 0≤z<1, with the proviso that x, y and z are not 0 at the same time.

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

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 protected anode, an electrochemical device including the same, and a method of preparing the electrochemical device. The protected anode may include: an anode layer; and a protective layer including an oxide represented by Formula 1, on the anode layer:AMO  Formula 1In Formula 1, A is at least one of Ge, Sb, Bi, Se, Sn, or Pb; M is at least one of In, TI, Sb, Bi, S, Se, Te, or Po; A and M are different from each other; and 0<x<100 and 0<y<100.

Protected anode, electrochemical device including the same, and method of preparing the electrochemical device

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

A composite positive electrode active material includes: a first metal oxide that has a layered structure and is represented by Formula 1; and a second metal oxide that has a spinel structure and is represented by Formula 2, wherein the composite positive electrode active material includes a composite of the first metal oxide and the second metal oxide:LiMO&#x2003;&#x2003;Formula 1LiMeO&#x2003;&#x2003;Formula 2

Composite positive electrode active material, positive electrode including the same, and lithium battery including the positive electrode

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

An oxide includes a compound represented by Formula 1, a compound represented by Formula 2, or a combination thereof:LiTaMPQOX&#x2003;&#x2003;Formula 1wherein, in Formula 1,

Oxide, preparation method thereof, solid electrolyte including the oxide, and electrochemical device including the oxide

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 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&#xb0; C. to about 200&#xb0; C.

Provided herein are a porous film, a separator including the same, an electrochemical device including the separator, and a method of preparing the porous film. The porous film includes first cellulose nanofibers which is impregnated with a carbonate-based solvent-containing electrolyte solution and has a reaction heat of 150 J/g or less at a temperature ranging from about 30&#xb0; C. to about 300&#xb0; C., as measured by differential scanning calorimetry (DSC).

Porous film, separator including the same, electrochemical device including separator, and method of preparing porous film

Growing community of inventors

Yongin-si, South Korea

Ryounghee Kim