Abstract: Disclosed are a manufacturing method for a LiCoO2 sintered body, said manufacturing method enabling the safe manufacturing of a high density sintered body, and a sputtering target. The LiCoO2 sintered body manufacturing method includes a step in which LiCoO2 powder is filled into a mold. The pressure inside the mold is reduced, and the LiCoO2 powder is pressure sintered inside the mold at a temperature between 800° C. and 880° C. inclusive. The above method enables the safe production of a LiCoO2 sintered body having a relative density of at least 95% and an average particle diameter of 10 ?m-30 ?m inclusive.

Abstract: To attain a method of producing a lithium phosphate sintered body and a sputtering target capable of providing a high-density bulk body with no macro-size internal defect, the present invention provides a method of producing a lithium phosphate sintered body, including the steps of: calcining raw material powder of Li3PO4 at a temperature set to be 650° C. or more and less than 850° C.; pulverizing and sieving the calcined raw material powder; and sintering the sieved raw material powder to a predetermined shape. By setting a calcining temperature of the raw material powder to be 650° C. or more and less than 850° C., moisture absorbed into the raw material powder is effectively removed and generation of macro-size internal defects in the resultant bulk (sintered) body is suppressed. When the calcining temperature is less than 650° C., calcining processing is insufficient, so generation of macro-size internal defects cannot be suppressed effectively.