Abstract: There is provided a positive electrode material that can be used to manufacture a solid-state battery whose initial resistance is kept low and at which it is difficult for resistance to increase even if charging/discharging are repeated. The positive electrode material of the present disclosure contains a positive electrode active material complex and a sulfide solid electrolyte. The positive electrode active material complex contains: a positive electrode active material, a conductive additive covering at least a portion of a surface of the positive electrode active material, and a solid electrolyte covering at least a portion of the conductive additive. The solid electrolyte contains Li, Ti, X and F. The X is at least one selected from the group consisting of Ca, Mg, Al, Y and Zr.

Abstract: A measuring device 1 according to the present disclosure measures a state of a solution L. The measuring device 1 includes a measuring unit 10 that outputs a measurement signal associated with the state of the solution L, a protection unit 20 attached to the measuring unit 10, and a controller 40 that obtains the information on the state of the solution L on the basis of a measurement signal output from the measuring unit 10. The measuring unit 10 has a first part P1 in a usable state that contributes to output of the measurement signal by coming into contact with the solution L, and a second part that is isolated from the solution L by the protection unit 20 and is in a standby state for measurement.

Abstract: A measuring device 1 according to the present disclosure measures a state of a solution L. The measuring device 1 includes a measuring unit 10 that outputs a measurement signal associated with the state of the solution L, a protection unit 20 attached to the measuring unit 10, and a controller 40 that obtains the information on the state of the solution L on the basis of a measurement signal output from the measuring unit 10. The measuring unit 10 has a first part P1 in a usable state that contributes to output of the measurement signal by coming into contact with the solution L, and a second part that is isolated from the solution L by the protection unit 20 and is in a standby state for measurement.