POSITIVE ELECTRODE FOR AIR CELL AND AIR CELL

• Main Authors: KAWASHIMA TSUTOMU, OTSUKA TOMO, OGAWA KOJI, SAWADA KOICHI
• Format: Patent
• Language: English; Japanese
• Published: 11.04.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a positive electrode for an air cell that can achieve an air cell capable of obtaining both high discharge capacity and high volume energy density.SOLUTION: A positive electrode for an air cell of the present disclosure is a positive electrode for an air cell including a porous body containing carbon. The porous body includes first pores having a pore size of 4 nm or more and less than 100 nm and second pores having a pore size of 100 nm or more and 10 μm or less. In the porous body, a second pore volume that is the cumulative pore volume of the second pores is larger than a first pore volume that is the cumulative pore volume of the first pores.SELECTED DRAWING: Figure 1 【課題】高い放電容量と高い体積エネルギー密度との両方を得ることができる空気電池を実現可能な、空気電池用正極を提供する。【解決手段】本開示の空気電池用正極は、炭素を含む多孔質体を含む空気電池用正極であって、前記多孔質体は、４ｎｍ以上１００ｎｍ未満の細孔径を有する第１細孔と、１００ｎｍ以上１０μｍ以下の細孔径を有する第２細孔とを含み、前記多孔質体において、前記第２細孔の累積細孔容積である第２細孔容積は、前記第１細孔の累積細孔容積である第１細孔容積よりも大きい。【選択図】図１