COATING SOLUTION FOR ELECTRODE FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD OF ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND ELECTRODE FOR LITHIUM SECONDARY BATTERY

• Main Authors: SHIBATA KENTA, ECHIGO YOSHIAKI, YAMADA MUNENORI, SHIGETA AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 27.09.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a coating liquid for forming a porous polyamideimide (PAI) layer having excellent ion permeability and a good cycle characteristic on an active material layer of an electrode for a lithium secondary battery, and a method of manufacturing an electrode for a lithium secondary battery in which a porous PAI layer is laminated and integrated on an electrode active material layer simply and economically.SOLUTION: There is provided a coating solution for an electrode for a lithium secondary battery in which a solution consists of PAI, a solvent consists of a mixed solvent of a good solvent and a poor solvent for the PAI, the poor solvent is an alcohol type solvent, and which contains a filler.SELECTED DRAWING: None 【課題】リチウム二次電池用電極の活物質層上に、イオン透過性に優れ、良好なサイクル特性を有する多孔質ポリアミドイミド（ＰＡＩ）層を形成させるための塗液の提供を目的とする。多孔質ＰＡＩ層が、電極活物質層に積層一体化されたリチウム二次電池用電極を、簡便かつ経済的に製造する方法の提供を目的とする。【解決手段】以下の特徴を有するリチウム二次電池用電極用塗液。１）溶質が、ＰＡＩからなる。２）溶媒が、ＰＡＩに対する良溶媒と貧溶媒との混合溶媒からなり、貧溶媒がアルコール系溶媒である。３）フィラを含有する。【選択図】なし