公开(公告)号：US20140004446A1

公开(公告)日：2014-01-02

申请号：US13929954

申请日：2013-06-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Pil YOON ,  Jonghee HAN ,  Shin Ae SONG ,  Tae Hoon LIM ,  Hyoung-Juhn KIM ,  Jong Hyun JANG ,  Dirk HENKENSMEIER ,  Eun Ae CHO ,  Suk Woo NAM ,  Seong Ahn HONG ,  Thieu CAM-ANH

IPC: H01M8/12

CPC classification number: H01M8/126 ,  C04B35/50 ,  C04B35/62675 ,  C04B35/62685 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/3298 ,  C04B2235/77 ,  C04B2235/85 ,  H01M8/1266 ,  H01M2300/0074 ,  H01M2300/0091 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

Abstract: Provided are a ceria-based composition having an undoped or metal-doped ceria and an undoped or metal-doped bismuth oxide, wherein the undoped or metal-doped bismuth oxide is present in an amount equal to or more than about 10 wt % and less than about 50 wt % based on the total weight of the ceria-based composition, and at least one selected from the ceria and the bismuth oxide is metal-doped. The ceria-based composition may ensure high sintering density even at a temperature significantly lower than the known sintering temperature of about 1400° C., i.e., for example at a temperature of about 1000° C. or lower, and increase ion conductivity as well.

Abstract translation: 提供了一种具有未掺杂或金属掺杂的二氧化铈和未掺杂或金属掺杂的氧化铋的二氧化铈基组合物，其中未掺杂或金属掺杂的氧化铋以等于或大于约10重量％的量存在 相对于二氧化铈基组合物的总重量为约50重量％，并且选自二氧化铈和氧化铋中的至少一种是金属掺杂的。 即使在显着低于约1400℃的已知烧结温度的温度下，即例如在约1000℃或更低的温度下，二氧化铈基组合物也可确保高的烧结密度，并且还增加离子传导性 。

公开(公告)号：US20130189605A1

公开(公告)日：2013-07-25

申请号：US13744527

申请日：2013-01-18

Applicant: Korea Institute of Science and Technology

Inventor： Shin Ae SONG ,  Sung Pil YOON ,  Seong Ahn HONG ,  Tae Hoon LIM ,  Jong Hee HAN ,  In Hwan OH ,  Suk Woo NAM ,  Hyoung Juhn KIM ,  Eun Ae CHO ,  Jong Hyun JANG ,  Dirk HENKENSMEIER ,  Thieu CAM-ANH

IPC: H01M8/12

CPC classification number: H01M8/126 ,  C04B35/50 ,  C04B2235/3203 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/3298 ,  C04B2235/44 ,  C04B2235/442 ,  C04B2235/443 ,  C04B2235/656 ,  C04B2235/77 ,  H01M2300/0074 ,  Y02E60/525 ,  Y02P70/56

Abstract: Provided are a ceria-based composition including ceria or metal-doped ceria, lithium salt, and optionally, bismuth oxide, ceria-based composite electrolyte powder, and a sintering method and sintered body using the same. Particularly, the lithium salt is present in an amount more than 0 wt % and equal to or less than 5 wt %, and bismuth oxide is present in an amount more than 0 wt % and equal to or less than 10 wt %. It is possible to reduce sintering temperature by adding a low-melting point and/or volatile compound to a ceria-based material. In this manner, it is possible to ensure a high composite sintering density, for example, of 95% or more even at a temperature, for example, of 1000° C. or lower, which is significantly lower than the conventional sintering temperature of 1500° C. in the case of a ceria-based material alone.

Abstract translation: 提供了包括二氧化铈或金属掺杂的二氧化铈，锂盐和任选的氧化铋，二氧化铈类复合电解质粉末和使用其的烧结方法和烧结体的二氧化铈基组合物。 特别地，锂盐的存在量大于0重量％且等于或小于5重量％，并且氧化铋以大于0重量％且等于或小于10重量％的量存在。 可以通过向二氧化铈基材料中添加低熔点和/或挥发性化合物来降低烧结温度。 以这种方式，即使在例如1000℃以下的温度下也可以确保高的复合烧结密度，例如为95％以上，这明显低于常规烧结温度为1500 在仅有二氧化铈基材料的情况下。