| 主权项 |
1. An analytical cell, through which an electron beam is transmitted to perform an analysis, comprising a first holder and a second holder stacked with an electrolytic solution interposed therebetween, wherein
the first holder and the second holder each contain a substrate including a through-hole and a transmission membrane having an electron beam permeability, the through-hole extends in a thickness direction of the substrate, the transmission membrane is disposed on one surface of the substrate, such that one end of the through-hole is covered with the transmission membrane, the first holder and the second holder are stacked to form an overlapping portion in such a manner that the surfaces of the substrates with the transmission membranes formed thereon face each other, in the overlapping portion, an inner space containing the electrolytic solution is sealed, and the through-holes face each other across the transmission membranes to form an observation window, through which an electron beam is transmitted, a negative electrode active material and a positive electrode active material are arranged at a distance from each other and respectively in contact with the electrolytic solution between the transmission membranes in the observation window, and a transmission body containing an electron beam permeable solid is formed between at least one of the negative electrode active material and the positive electrode active material and the transmission membrane in the observation window. |
