摘要:
A capacitor has a positive electrode 10, a negative electrode 20, and a solid electrolyte layer arranged between the electrode layers 10 and 20. At least one 10 (20) of the electrode layers of this capacitor 100 has an Al porous body 11, and an electrode body 12 (13) held in this Al porous body 11 to polarize the electrolyte. The oxygen content in the surface of the Al porous body 11 is 3.1% by mass or less. The matter that the oxygen content in the surface of the Al porous body 11 is 3.1% by mass or less is equal to the matter that a high-resistance oxide film is hardly formed on the surface of the Al porous body 11. Thus, this Al porous body 11 makes it possible to make the current collector area of the electrode layer 10 (20) large so that the capacitor 100 can be improved in capacity.
摘要:
A lithium storage battery having a high energy density and preferred electrical charge/discharge performance is produced to prevent a short circuit that may be caused by dendrite produced from the negative electrode. The lithium storage battery comprises an electrolyte layer, a positive electrode, and a negative electrode consisting of a lithium-containing material. The electrolyte layer consists of an inorganic solid electrolyte, and a positive electrode contains an organic polymer. Preferably, the electrolyte layer contains at least one element chosen from a group that consists of oxygen, sulfur, nitrogen, sulfide and oxynitride. Preferably, the lithium ion conductivity of the organic electrolytic solution of the positive electrode is lower than that of the inorganic solid electrolyte of the electrolyte layer.
摘要:
A sulfide-based inorganic solid electrolyte which is suppressed in the reaction of lithium with silicon sulfide even when it is contacted with lithium metal, characterized in that it is substantially composed of Li, P and S and contains no Si; a method for preparing the inorganic solid electrolyte; and a lithium cell component and a lithium secondary cell using the electrolyte. In particular, it is desirable that, in the boundary region between a lithium-containing material and the inorganic solid electrolyte, the amount of oxygen changes gradually from the inorganic solid electrolyte toward the lithium-containing material as analyzed by XPS in which an analysis chamber can be maintained at an ultra-high vacuum of 1.33 X 10-9 hPa or less, and an oxygen-containing layer on the surface of the lithium-containing material is almost removed. Such an electrolyte can be prepared by a method comprising overlapping the step of forming a film of the inorganic solid electrolyte with at least a part of the step of irradiating the surface of the substrate with an inert gas ion to etch the surface.