Moisture content measurement method for electrode, method for producing electrode for lithium ion secondary battery, moisture content measurement device, and moisture content measurement method

摘要

The electrode moisture content measuring method of the present invention includes at least the following three steps (A) to (C). (A) A step of placing an electrode (110) as a sample to be measured in a container (105) having a gas inlet pipe (101) and a gas outlet pipe (103). (B) Preheated to a predetermined temperature. A step of heating the electrode (110) by supplying an inert gas from the gas introduction pipe (101) into the container (105) to vaporize moisture adsorbed on the electrode (110). (C) Electrode (110) The step of recovering the water vaporized from the gas together with the inert gas from the gas outlet pipe (103) and quantifying the recovered water. The water content measuring device (100) of the present invention includes the gas inlet pipe (101) and the gas outlet. A container (105) having a pipe (103) and containing a sample (110) to be measured, and an inert gas heated to a predetermined temperature in advance from the gas introduction pipe (101) into the container (105) By A heating means (107) for heating the constant sample (110) to vaporize water adsorbed on the sample to be measured (110), and the moisture vaporized from the sample to be measured (110) from the gas outlet tube (103). A water content measuring means (109) for recovering and quantifying the recovered water.