ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

• Main Authors: ISOTANI YUJI, TAKAHASHI MAKIKO, TANAAMI KIYOSHI, AOYAGI SHINTARO
• Format: Patent
• Language: English; Japanese
• Published: 09.09.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide: an electrode for a lithium ion secondary battery which is an electrode for obtaining a lithium ion secondary battery having a high energy density and includes a current collector comprising foam metal, and which is further capable of improving durability as well as output/input characteristics (output density); and a lithium ion secondary battery in which the electrode for a lithium ion secondary battery is used.SOLUTION: An electrode for a lithium ion secondary battery includes a current collector comprising foam metal. An electrode layer of the electrode for a lithium ion secondary battery is split into a plurality of electrode split bodies, and the moving distance of electrons and the moving distance of ions in each of the electrode split bodies are reduced.SELECTED DRAWING: Figure 1 【課題】発泡金属を集電体とするエネルギー密度の高いリチウムイオン二次電池を得るための電極であって、さらに、耐久性とともに、出入力特性（出力密度）を向上させることのできる、リチウムイオン二次電池用電極、および当該リチウムイオン二次電池用電極を用いたリチウムイオン二次電池を提供する。【解決手段】発泡金属からなる集電体を用いるリチウムイオン二次電池用電極の電極層を、複数の電極分割体に分割して構成し、それぞれの電極分割体における電子の移動距離およびイオンの移動距離を短くする。【選択図】図１