Nickel metal hydride rechargeable batteries and nickel-cadmium batteries which good?

Source: 2020 - 04 - 04 but hits: nickel metal hydride rechargeable batteries and nickel-cadmium batteries which good? Everyone is familiar with nickel metal hydride rechargeable batteries. Nickel metal hydride rechargeable batteries on the environment pollution-free, no memory effect. Nickel metal hydride rechargeable batteries disadvantage is that the price of nickel metal hydride batteries is much more expensive. The invention of the nickel metal hydride rechargeable batteries, nickel-metal hydride batteries have occupied a large part of the battery industry market, the market and the industry recognition. However, nickel metal hydride rechargeable battery was invented, a short period of time is occupied the market position of nickel cadmium battery, is this why? Don't nickel cadmium battery so much worse than nickel metal hydride rechargeable batteries, abandoned by the new age? Is that so? Below to measure small repair battery with us! A nickel cadmium battery is nickel cadmium battery ( 镍- cadmiumbattery) Is a kind of typical alkaline battery, the positive active material is mainly composed of nickel, and the cathode active material is mainly composed of cadmium. Cadmium, nickel hydroxide of positive and negative for the potassium hydroxide electrolyte solution of nickel cadmium battery, normal maintenance is regularly deep point discharge: about each use (more than one months Or 30 cycle) ; 1. Nickel cadmium battery has a memory effect. Nickel cadmium battery in use process, if the battery is low, the battery will start to charge. When the battery when the second point discharge, battery cannot release all the energy. Nickel cadmium battery charge at the beginning, for example, before the release of only 80% of the electricity, the release of 80% of the battery when fully charged, this kind of situation is called memory effect. 2. Nickel cadmium battery of environmental pollution, the toxicity of cadmium, harmful to human body. 3. Nickel cadmium battery does not support under high temperature and low temperature quick charge. two Nickel metal hydride rechargeable batteries of the same size ni-mh rechargeable battery power 1 than nickel cadmium rechargeable batteries. 5 ~ 2 times, and no cadmium pollution. Larger capacity of nickel metal hydride rechargeable batteries has been widely used in gasoline/electric hybrid cars 1. Nickel metal hydride rechargeable batteries do not contain highly toxic substances. Main ingredients are nickel and rare earths. 2. Nickel metal hydride rechargeable battery is made up of hydrogen ion and nickel metal. The power reserves more than 30% of nickel cadmium battery. 3. In terms of point discharge rate, the tip of the nickel metal hydride rechargeable batteries discharge rate significantly higher than the nickel cadmium battery; 4. Under the same condition, the service life of nimh rechargeable battery is higher than the nickel cadmium battery; 5. The Nimh rechargeable battery, compatible with high and low temperature quick charge; 6. Compared with nickel cadmium battery, poor adaptability, less than 10 ℃, the charge was slow; Such as the temperature is lower than 0 ℃, charging do not slow down the speed. 7. The hydrogen storage capacity of hydrogen storage alloys is very strong. Per unit volume of hydrogen storage density is the same temperature and working pressure of gaseous hydrogen one thousand times, the equivalent of one thousand under the atmospheric pressure of high pressure hydrogen nickel-metal hydride rechargeable batteries have no memory effect. So, you don't need to worry about the application of nickel-cadmium batteries. In addition to the widely used in electronic products, it is also the first Toyota prius hybrid adopts special remind: if you want to nickel metal hydride rechargeable battery, need not deliberately discharge tip, only will shorten the life of nickel metal hydride rechargeable battery, it is harmful. Is not an option, you just use the resistance of the battery connection point discharge of battery, and the working current can't control to some extent, this is more likely to be put in ov, even lead to the battery pack in series of positive and negative poles reverse loading nickel metal hydride rechargeable batteries and nickel-cadmium batteries same nickel metal hydride batteries and nickel-cadmium batteries, also belong to the alkaline battery, its features and nickel-cadmium batteries are similar, but nimh batteries do not include cadmium, copper, there would be no industrial pollution problems.