RECHARGEABLE LITHIUM BATTERY

摘要

PURPOSE:To make steady charge-discharge possible by forming a battery comprising a positive electrode prepared by welding a metal current collector to a positive case and placing activated carbon thereon, and a lithium negative electrode. CONSTITUTION:A lath comprising aluminium or nickel is welded as a positive current collector 5 to the inner bottom of a positive case 1 and activated carbon 4 is placed thereon to form a polarizable positive electrode. The positive electrode is faced with a negative electrode 7 with a separator 6 interposed, and electrolyte prepared by dissolving lithium perchlorate in a mixed solution of propylene carbonate and DME is poured to form a rechargeable lithium battery. Contact resistance between the current collector 5 and the activated carbon 4, and the current collector 5 and the positive case 1 is decreased and steady charge-discharge performance is kept for a long time. Manufacturing is easy and cost is also low.