the construcutal differences between Mercury-free alkaline battery and the general

Years before and after the amalgamation of the zinc anode to reduce the self-discharge of zinc. 1877 Baptist wax treatment on the carbon rod used to prevent  hp pavilion batterythe carbon rod climbing fluid, reduce the corrosion of metal collector.

Years, instead of using acetylene black powder, so that the capacity increased by 40% -50%, electrolytic manganese dioxide in 1945, the application of batteries to make zinc-manganese battery discharge performance of a further large increase. However, with the development of the times, ordinary alkaline zinc-manganese batteries can not meet the market demand.

As early as more than 100 years ago, it was proposed to do with the zinc anode, MnO2 to do positive, KOH or NaOH electrolyte to do, in the long process of research around four main issues: First, instead of flaky powder porous zinc electrode electrode reduce the discharge current density and resolution of zinc passivation in alkali solution is easy shortcomings; Second, use of anti-polar structure and increase the amount of MnO2 filling, so that the capacity to match positive and negative electrodes;  hp Pavilion dv2000 battery，hp Pavilion dv6000 battery,3 is the amalgamation of zinc powder and alkali treatment Liquid Canada ZnO, to solve the corrosion of zinc in alkaline solution; 4 is sealed to improve the structure and sealing materials to address the phenomenon of climbing base. Until 1950, on behalf of the before and after the zinc-manganese dry battery based on the successful production of alkaline zinc-manganese batteries. It zinc as the anode, electrolytic manganese dioxide as cathode, electrolyte using NaOH or KOH, doubling the battery performance improved. It is not only high capacity, but also suitable for high-current continuous discharge. Also has excellent low temperature performance, storage performance and leak-proof performance.

However, in the pre-alkaline manganese batteries, zinc anode to control the air volume in the alkali solution, when the battery very large with mercury, using mercury in the 2% -6%, the late eighties as the strengthening of people's awareness of environmental protection , setting off a mercury-free alkaline manganese battery research boom, look for organic or inorganic mercury on behalf of the inhibitor and zinc dust in the alloying elements (mainly Al, Bi, In, Pb) to become a major research direction.  hp Pavilion DV1000 battery ，hp Pavilion dv4000 battery To the mid-nineties, mercury-free alkaline manganese batteries entering the market. At the same time, since the '60s, the rechargeable alkaline zinc-manganese rechargeable battery carried out extensive research, after 30 years of research breakthrough has been made, but because of its shallow depth of discharge, cycle life is short, not yet to achieve commercialization.

Into the twenty-first century, the alkaline zinc-manganese batteries to be rapid development, and a great alternative to regular zinc-manganese batteries and other batteries trends. The development of electric appliances at the same time alkaline manganese batteries of high capacity and large current discharge set higher requirements. Therefore, future study of alkaline manganese batteries focus on high-power heavy-duty discharge performance, battery capacity and storage life enhancement and improvement.