ARRANGEMENT STRUCTURE OF COLLECTOR PLATES OF BIPOLAR SOLID BATTERY

• Main Authors: OKUBO SOKICHI, SUKIGARA YOSHI, KAMAYA NORIAKI, MAEYAMA HIROTAKA, HARADA USHIO
• Format: Patent
• Language: English; Japanese
• Published: 04.04.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide an arrangement structure of collector plates of bipolar solid battery, by which a plurality of collector plates for grasping a voltage of each battery cell can be arranged outside a bipolar solid battery, suppressing the increase in occupied area.SOLUTION: Disclosed is a structure for arrangement of collector plates of a bipolar solid battery 1. The bipolar solid battery 1 has: a battery cell laminate arranged by laminating a plurality of solid battery cells each including a positive electrode active material layer, a negative electrode active material layer, and a solid electrolyte layer disposed between the positive and negative electrode active material layers, and put in contact with the positive and negative electrode active material layers; and a positive electrode current collector 11 and a negative electrode current collector 12 on one side face 101 to a direction of lamination, wherein the collector plates 31 and 32 of the solid battery cell 20 are arranged on at least one face of a surface 102 as one end face in the direction of lamination and a rear face as the other end face in the direction of lamination.SELECTED DRAWING: Figure 1 【課題】各電池セルの電圧を把握するための複数の集電板を、専有面積が大きくなることを抑えてバイポーラ固体電池の外部に配置することが可能なバイポーラ固体電池の集電板配置構造を提供すること。【解決手段】正極活物質層と、負極活物質層と、正極活物質層と負極活物質層との間に配置され正極活物質層と負極活物質層とのそれぞれに接触する固体電解質層と、をそれぞれ備える複数の固体電池セルが積層されて構成された電池セル積層体を有するバイポーラ固体電池１の、積層の方向に対する一側面１０１に正極集電体１１と負極集電体１２を備え、積層の方向における一端面としての表面１０２と、積層の方向における他端面としての裏面と、の少なくとも一面に、固体電池セル２０の集電板３１、３２が配置されている、バイポーラ固体電池１の集電板配置構造である。【選択図】図１