HERMETICALLY-SEALED TYPE BATTERY

• Main Authors: KATOU KENZOU, SHIMOYAMA RIYOUZOU, TAKEDA KAZUTOSHI, HASUMI KAZUO, SUGIMOTO KOUICHI, SHIYOUJI SETSUO
• Format: Patent
• Language: English
• Published: 28.04.1983
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PURPOSE:To obtain a highly reliable hermetically-sealed type battery completely free from leakage while using for an electronic watch, a desk computer, a camera and a hearing aid by a method, wherein a metal terminal and a metal case are respectively sealed on the same upper surface of an annular ceramic body while having said ceramic sealed part thinned in a ceramic sealed case. CONSTITUTION:In Fig., 21 denotes a metal terminal made of Kovar alloy with a T-shaped section, 22 denotes a metal case made of the Kovar alloy, 23 denotes an annular ceramic body and 24 denotes a metallized layer respectively performed on an inner peripheral top surface and an outer peripheral top surface of the annular ceramic body 23. Further the annular ceramic body 23, a top part 21a of the metal terminal 21 and the metal case 22 are respectively enclosed in the metallized layer 24 by suitable means of soldering and laser deposition. If compared with batteries having the same thickness, inner volume of the battery according to the present invention is expected to be bigger than that of the former batteries thus to raise battery capacity.