Ni-MH battery with high energy density, high power density, fast charge and discharge

Nickel metal hydride battery is a hydrogen storage alloy anode, nickel cathode, potassium hydroxide electrolyte and separator composed of rechargeable batteries, nickel-cadmium batteries with the essential battery TOSHIBA Laptop Batterydifference lies only in the negative electrode materials do not ask. This battery voltage and the same nickel-cadmium batteries for 12 volts. It can be used in nickel-cadmium batteries are used on equipment items. Ni-MH battery idea started in the seventies it was mentioned that a large number of studies focus on nineties, industrial production from the 20th century the early years of the last 10 years. Hydrogen storage alloys as negative electrode material is formed of two metals A and B alloy, in which A metal (La, Ti, Zr, etc.) can be sucked into a lot of hydrogen to form a stable hydride. And B metals (Ni, Co, Fe, Mn, etc.) can not form a stable hydride, but in which hydrogen is easy to move. In other words, A controls the hydrogen absorption of metal reserves, and B metals in control of the reversibility of hydrogen absorption and desorption. In accordance with the alloy crystal structure can be divided into AB5 type hydrogen storage alloy, AB2-type, AB type, solid solution type, etc., which is mainly used AB5 type rare earth metal alloy. AB5-type hydrogen storage alloys La deserves a major element of copper and nickel, while adding a small amount of aluminum, manganese and cobalt. Not all of the hydrogen storage alloy for Ni-MH battery can be negative materials. Japan's production of nickel-metal hydride batteries are mainly mixed with rare earth metals and rare earth metals as negative, total world production of the battery capacity of the kinds of batteries for more than 90% of most major U.S. titanium silver-based alloys used for negative, about the
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production of batteries 5% of world production, the production company Aofennike and Dula Sai Lok several companies. 1. Nickel metal hydride batteries superiority. Ni-MH battery with high energy density, high power density, fast charge and discharge, long cycle life and no memory effect, no pollution, can rabbits maintenance and safety, known as the green battery. This kind of battery cell, compared with the nickel-pot, performance indicators are higher than the nickel-cadmium batteries; Ni-MH battery specific energy is 1.5-2 times the nickel-cadmium batteries. Current charging and discharging, no memory effect, good low temperature characteristics, overall performance is better than nickel-cadmium batteries, nickel-cadmium battery waste batteries at the same time deal with complex, energy crisis, environmental pollution is serious today, Ni-MH battery shows a wide application prospect . Because most nickel electrode with nickel-cadmium battery exactly the same, so that both can use nickel-
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cadmium batteries can be used appliances Nickel Metal Hydride battery; it non-toxic, environmentally friendly and better performance than Ni-Cd batteries, it will not like the high lithium sub-tidal explosive event, as the battery. Therefore, the production growth rate the past five years much higher than the nickel-cadmium batteries.

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