1.5V cylinder lithium pyrite battery with anode collection fluid of stephanoporate metal

Abstract

A 1.5V column lithium iron disulphide cell with the porous metal as the anode current collector, includes a case, wherein the upper of the case is a combination nut cap, and an anode and a cathode are arranged in the case; the case is filled with the electrolyte; a septum is arranged between the anode composed of a current collector and an anode material and the cathode. The cathode is the metallic lithium, the lithium aluminum alloy or the lithium silicon alloy. The electrolyte is the solution in which lithium salt is dissolved in the ethylene carbonate, characterized in that, the anode current collector is the porous metal, selected from one of foaming nickel, fiber nickel, foaming copper, foaming aluminum, weaved aluminum mesh, weaved copper mesh, weaved stainless steel mesh, weaved nickel mesh. The invention causes the active material fully to contact with the current collector, advances the utilance of the active material, refrains expansion of the anode in the cell discharging process, reduces the falling of the active material, reinforces the discharging ability of the large current of the cell, advances the discharging capacity of the cell, simplifies the production technology of the cell, which is suitable for the large-scale industrialization production.

Description

technical field

[0001] The invention relates to a 1.5V cylindrical lithium iron disulfide battery, in particular to a 1.5V cylindrical lithium iron disulfide battery whose positive current collector is porous metal. Background technique

[0002] In recent years, with the development of electronic technology and the increasing emphasis on environmental protection around the world, higher requirements have been put forward for chemical power sources. The traditional alkaline zinc-manganese battery has weak discharge capacity under high current and high load, which is increasingly unable to meet the needs of applications. Cylindrical lithium iron disulfide battery is a new type of 1.5V battery. The active material of the positive electrode is iron disulfide, and the negative electrode is made of metal lithium or lithium alloy. The working voltage is 1.5V. The discharge capacity is higher than that of the same type of alkaline manganese battery. It is non-polluting and has the ...