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LITHIUM COBALTATE ORIENTATED SINTERED PLATE AND MANUFACTURING METHOD THEREOF, AND METHOD FOR FORMING SOLID ELECTROLYTE LAYER ON LITHIUM COBALTATE ORIENTATED SINTERED PLATE
PROBLEM TO BE SOLVED: To provide a lithium cobaltate orientated sintered plate which is hard to cause a trouble in a battery performance even if a LiPON based solid electrolyte layer is formed on its surface by sputtering.SOLUTION: A method for manufacturing a lithium cobaltate orientated sintered plate comprises (a)a step for preparing a green sheet including CoOparticles; (b)a step for sintering the green sheet into a CoOoriented sintered plate; and (c)a step for sintering the CoOoriented sintered plate in coexistence of a lithium source to introduce lithium thereinto, thereby forming the lithium cobaltate orientated sintered plate primarily including LiCoO. The method further comprises: (d1)a step for covering a surface of the CoOoriented sintered plate with a liquid solution or slurry of a compound including at least one additive element of Ti, Al and/or Zr prior to the step (c); or (d2)a step for coating the surface of the lithium cobaltate oriented sintered material with the liquid solution or slurry and then, sintering the lithium cobaltate oriented sintered material coated with the liquid solution or slurry after the step (c).SELECTED DRAWING: None
【課題】表面にＬｉＰＯＮ系固体電解質層をスパッタリングにより形成して電池化した場合であっても電池性能の不具合を生じにくいコバルト酸リチウム配向焼結板を提供する。【解決手段】（ａ）Ｃｏ３Ｏ４粒子を含むグリーンシートを用意し、（ｂ）グリーンシートを焼成してＣｏ３Ｏ４配向焼結板とし、（ｃ）Ｃｏ３Ｏ４配向焼結板をリチウム源の共存下で焼成してリチウムを導入し、それにより主としてＬｉＣｏＯ２からなるコバルト酸リチウム配向焼結板を形成する工程を含み、（ｃ）工程に先立ちＣｏ３Ｏ４配向焼結板の表面をＴｉ、Ａｌ及び／又はＺｒの添加元素を含む化合物の溶液又はスラリーで被覆する工程（ｄ１）、又は（ｃ）工程後にコバルト酸リチウム配向焼結体の表面を上記溶液又はスラリーで被覆し、該溶液又はスラリーで被覆された前記コバルト酸リチウム配向焼結体を焼成する工程（ｄ２）をさらに含む、コバルト酸リチウム配向焼結板の製造方法。【選択図】なし
LITHIUM COBALTATE ORIENTATED SINTERED PLATE AND MANUFACTURING METHOD THEREOF, AND METHOD FOR FORMING SOLID ELECTROLYTE LAYER ON LITHIUM COBALTATE ORIENTATED SINTERED PLATE
PROBLEM TO BE SOLVED: To provide a lithium cobaltate orientated sintered plate which is hard to cause a trouble in a battery performance even if a LiPON based solid electrolyte layer is formed on its surface by sputtering.SOLUTION: A method for manufacturing a lithium cobaltate orientated sintered plate comprises (a)a step for preparing a green sheet including CoOparticles; (b)a step for sintering the green sheet into a CoOoriented sintered plate; and (c)a step for sintering the CoOoriented sintered plate in coexistence of a lithium source to introduce lithium thereinto, thereby forming the lithium cobaltate orientated sintered plate primarily including LiCoO. The method further comprises: (d1)a step for covering a surface of the CoOoriented sintered plate with a liquid solution or slurry of a compound including at least one additive element of Ti, Al and/or Zr prior to the step (c); or (d2)a step for coating the surface of the lithium cobaltate oriented sintered material with the liquid solution or slurry and then, sintering the lithium cobaltate oriented sintered material coated with the liquid solution or slurry after the step (c).SELECTED DRAWING: None
【課題】表面にＬｉＰＯＮ系固体電解質層をスパッタリングにより形成して電池化した場合であっても電池性能の不具合を生じにくいコバルト酸リチウム配向焼結板を提供する。【解決手段】（ａ）Ｃｏ３Ｏ４粒子を含むグリーンシートを用意し、（ｂ）グリーンシートを焼成してＣｏ３Ｏ４配向焼結板とし、（ｃ）Ｃｏ３Ｏ４配向焼結板をリチウム源の共存下で焼成してリチウムを導入し、それにより主としてＬｉＣｏＯ２からなるコバルト酸リチウム配向焼結板を形成する工程を含み、（ｃ）工程に先立ちＣｏ３Ｏ４配向焼結板の表面をＴｉ、Ａｌ及び／又はＺｒの添加元素を含む化合物の溶液又はスラリーで被覆する工程（ｄ１）、又は（ｃ）工程後にコバルト酸リチウム配向焼結体の表面を上記溶液又はスラリーで被覆し、該溶液又はスラリーで被覆された前記コバルト酸リチウム配向焼結体を焼成する工程（ｄ２）をさらに含む、コバルト酸リチウム配向焼結板の製造方法。【選択図】なし
LITHIUM COBALTATE ORIENTATED SINTERED PLATE AND MANUFACTURING METHOD THEREOF, AND METHOD FOR FORMING SOLID ELECTROLYTE LAYER ON LITHIUM COBALTATE ORIENTATED SINTERED PLATE
コバルト酸リチウム配向焼結板及びその製造方法、並びにコバルト酸リチウム配向焼結板への固体電解質層の形成方法
YURA YUKINOBU (Autor:in) / OHIRA NAOTO (Autor:in) / KOBAYASHI NOBUYUKI (Autor:in)
09.05.2016
Patent
Elektronische Ressource
Japanisch
IPC:
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
Method for manufacturing lithium cobaltate oriented sintered plate
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