Lithium ion battery, nickel metal hydride batteries, nickel cadmium battery

Source: 2020 - 03 - Prominence 25 clicks: first lithium ion battery, nickel metal hydride batteries, nickel cadmium battery difference? Which good? What is a nickel metal hydride batteries, lithium ion battery and nickel cadmium battery nimh batteries nickel metal hydride battery is composed of hydrogen ion and nickel. 30% more than the nickel cadmium battery storage. It lighter than nickel-cadmium batteries. Nimh batteries nickel metal hydride batteries are the shortcomings of expensive price, performance than lithium battery. Lithium-ion batteries, a kind of high energy density batteries based on lithium ion batteries. Lithium ion battery is a kind of intelligent battery, it can be used with special original smart chargers, to achieve the shortest charging time, maximum life cycle and the largest capacity. Lithium ion batteries is by far the most powerful. And compared with the size of the nickel cadmium battery and nickel metal hydride batteries, its storage capacity is the largest, the lightest weight, the service life of the longest, shortest charging time, no recall effect. Nickel cadmium battery on the nickel cadmium battery positive plate of the active material is composed of nickel oxide powder and graphite powder. Graphite is not involved in chemical reactions, its main function is to improve the electrical conductivity. Negative plate on the active substance is made up of cadmium oxide powder and iron oxide powder. The function of ferric oxide powder is to cadmium oxide powder has high diffusivity, avoid agglomeration, increase the carrying capacity of plate. Active substances in perforated steel band separation, after forming into the positive and negative plate of the battery. Plate with alkali resistance between hard rubber insulating rod or perforated PVC corrugated cardboard is separated. The electrolyte is usually potassium hydroxide solution. Compared with other battery, nickel cadmium battery has medium self-discharge rate ( A) the battery when not in use of discharge rate 。 In the process of using NiCd battery, if you don't completely discharge, battery recharging the batteries. For example, if you use off 80% of the energy, and then you got enough energy, the battery can only use 80% of the energy. This is called memory effect. Of course, a few no-load discharge/charge cycle will make the nickel cadmium battery back to normal work. As the NiCd battery recall effect, if the battery is not fully discharge, each battery before charging discharge below 1 v. The difference between the nickel metal hydride battery and lithium battery 1. Volume rechargeable lithium battery compared with ordinary nickel cadmium/nimh batteries has small volume, light weight, low self-discharge rate, and the advantages of no recall effect, is widely used in many new mobile device. We usually use mobile phones, notebook computers, mobile devices such as PDA batteries has been gradually replaced by lithium batteries. Nickel metal hydride battery recall effect is not obvious, a bit, to emergency use, don't discharge after charging, generally use best discharge after enough. 2, the lithium battery than energy, batteries; A single lithium battery voltage is 3 times of nimh battery voltage. No memory effect, can with you to use. But also can not be used for charging, such amounts of charge and discharge, affect the battery life. Lithium battery is not suitable for long-term storage, time grew to permanently lose local capacity. 40% of the fee, best in the freezer. Charging ways, unlike ni-cd/ni-mh battery, a single rechargeable lithium battery charging voltage is 3. 6v( Part of the battery may be marked as 3. 7v) 。 With the power of the filling, lithium battery voltage will gradually rise, this is lithium battery can discern the mark of a filling, general manufacturers recommended stop charging voltage is 4. 2v( Single lithium battery) 。 Commonly used lithium battery charging voltage limit and current limit method. If your friend want to himself to the lithium battery, need to pay attention to its charging ways, this has to do with nickel cadmium/constant current charging of nimh batteries in a different way. Three, nickel cadmium battery and lithium battery which good nickel cadmium battery has the advantage of large discharge current, the nimh batteries are not as big as nimh batteries. Both are 7/5 that is commonly used in battery 1 in the past. 25 v battery.