A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LITHIUM LANTHANUM ZIRCONIUM OXIDE-BASED CERAMIC, METHOD FOR PRODUCING SAME, AND ALL-SOLID-STATE LITHIUM SECONDARY BATTERY INCLUDING SAME
A method for producing a lithium lanthanum zirconium oxide (LLZO)-based ceramic according to an embodiment of the present invention comprises a sintering step for sintering an oxide sheet that contains an LLZO powder containing the elements lithium, lanthanum, and zirconium. The sintering step may include a first sintering step for sintering at a temperature of T1 and a second sintering step for sintering at a temperature of T2 lower than T1. An LLZO-based ceramic according to another embodiment of the present invention has a relative density of at least 88% and is composed of grains having a size of 1-10 µm, wherein the standard deviation of the grain size is 80% or less of the average grain size, and the grains may have a cubic crystal structure.
Un procédé de production d'une céramique à base d'oxyde de lithium lanthane zirconium (LLZO) selon un mode de réalisation de la présente invention comprend une étape de frittage pour fritter une feuille d'oxyde qui contient une poudre de LLZO contenant les éléments lithium, lanthane et zirconium. L'étape de frittage peut comprendre une première étape de frittage pour le frittage à une température de T1 et une seconde étape de frittage pour le frittage à une température de T2 inférieure à T1. Une céramique à base de LLZO selon un autre mode de réalisation de la présente invention a une densité relative d'au moins 88% et est composée de grains ayant une taille de 1 à 10 µm, l'écart-type de la taille de grain étant de 80% ou moins de la taille de grain moyenne, et les grains pouvant avoir une structure cristalline cubique.
일 구현예에 따른 LLZO계 세라믹스 제조방법은 리튬, 란탄, 지르코늄 원소를 포함하는 리튬 란탄 지르코늄 산화물(Lithium Lanthanum Zirconium Oxide, LLZO) 분말을 포함하는 산화물 시트를 소결(Sintering)하는 소결 단계;를 포함하며, 상기 소결 단계는 T1의 온도로 소결하는 제1 소결 단계; 및 T1보다 낮은 T2의 온도에서 소결하는 제2 소결 단계;를 포함할 수 있다. 다른 구현예에 따른 LLZO계 세라믹스는 상대밀도가 88% 이상이고, 상기 결정립의 사이즈가 1 내지 10㎛이며, 상기 결정립 사이즈의 표준편차는 평균 결정립 사이즈의 80% 이하이며, 상기 결정립은 큐빅(Cubic) 결정구조를 가질 수 있다.
LITHIUM LANTHANUM ZIRCONIUM OXIDE-BASED CERAMIC, METHOD FOR PRODUCING SAME, AND ALL-SOLID-STATE LITHIUM SECONDARY BATTERY INCLUDING SAME
A method for producing a lithium lanthanum zirconium oxide (LLZO)-based ceramic according to an embodiment of the present invention comprises a sintering step for sintering an oxide sheet that contains an LLZO powder containing the elements lithium, lanthanum, and zirconium. The sintering step may include a first sintering step for sintering at a temperature of T1 and a second sintering step for sintering at a temperature of T2 lower than T1. An LLZO-based ceramic according to another embodiment of the present invention has a relative density of at least 88% and is composed of grains having a size of 1-10 µm, wherein the standard deviation of the grain size is 80% or less of the average grain size, and the grains may have a cubic crystal structure.
Un procédé de production d'une céramique à base d'oxyde de lithium lanthane zirconium (LLZO) selon un mode de réalisation de la présente invention comprend une étape de frittage pour fritter une feuille d'oxyde qui contient une poudre de LLZO contenant les éléments lithium, lanthane et zirconium. L'étape de frittage peut comprendre une première étape de frittage pour le frittage à une température de T1 et une seconde étape de frittage pour le frittage à une température de T2 inférieure à T1. Une céramique à base de LLZO selon un autre mode de réalisation de la présente invention a une densité relative d'au moins 88% et est composée de grains ayant une taille de 1 à 10 µm, l'écart-type de la taille de grain étant de 80% ou moins de la taille de grain moyenne, et les grains pouvant avoir une structure cristalline cubique.
일 구현예에 따른 LLZO계 세라믹스 제조방법은 리튬, 란탄, 지르코늄 원소를 포함하는 리튬 란탄 지르코늄 산화물(Lithium Lanthanum Zirconium Oxide, LLZO) 분말을 포함하는 산화물 시트를 소결(Sintering)하는 소결 단계;를 포함하며, 상기 소결 단계는 T1의 온도로 소결하는 제1 소결 단계; 및 T1보다 낮은 T2의 온도에서 소결하는 제2 소결 단계;를 포함할 수 있다. 다른 구현예에 따른 LLZO계 세라믹스는 상대밀도가 88% 이상이고, 상기 결정립의 사이즈가 1 내지 10㎛이며, 상기 결정립 사이즈의 표준편차는 평균 결정립 사이즈의 80% 이하이며, 상기 결정립은 큐빅(Cubic) 결정구조를 가질 수 있다.
LITHIUM LANTHANUM ZIRCONIUM OXIDE-BASED CERAMIC, METHOD FOR PRODUCING SAME, AND ALL-SOLID-STATE LITHIUM SECONDARY BATTERY INCLUDING SAME
CÉRAMIQUE À BASE D'OXYDE DE LITHIUM LANTHANE ZIRCONIUM, SON PROCÉDÉ DE PRODUCTION, ET BATTERIE SECONDAIRE AU LITHIUM TOUT SOLIDE LA COMPRENANT
리튬 란탄 지르코늄 산화물계 세라믹스, 이의 제조방법 및 이를 포함하는 전고체 리튬 이차전지
PARK JI-YOUNG (author) / HEO PIL-WON (author) / NASIR MOHAMMAD (author) / PARK HEE-JUNG (author)
2024-10-10
Patent
Electronic Resource
Korean
GARNET-TYPE LITHIUM-LANTHANUM-ZIRCONIUM COMPOSITE OXIDE AND METHOD FOR PRODUCING THE SAME
| European Patent Office | 2018
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| European Patent Office | 2020