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What is Lithium Button Cell? by olive zhu
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What is Lithium Button Cell? |
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A Lithium coin battery is a sub category of primary batteries. The name is derived from the shape which resembles a coin. It also named as lithium button cell. Both the types i.e., disposable and rechargeable are available in the market in a variety of sizes. Some common applications are wrist watches, calculators, hearing aids, RTC, sensors, motherboard (to keep the time and date updated), memory units etc. The battery used in this article is disposable type. The key chemical constituents are Lithium, Manganese oxide and an organic electrolyte. The voltage range for these types of batteries varies from 1.5V to 3.7 V.
Coin type lithium batteries are high energy, high reliability batteries for a variety of applications. The 3 volts in these high energy density batteries is about twice that of conventional dry batteries.
Alkaline batteries are made in the same button sizes as other types, but typically provide less capacity and less stable voltage (it drops gradually in use) than more costly silver oxide or lithium cells. They are often sold as cheap watch batteries too, and sometimes by people who do not know the difference.
In some ways the size is the most important property of a button cell: cells of different chemistry are to a considerable extent interchangeable. In practice only cells of fairly similar voltages are made in any given size; there is no "CR1154" 3V lithium battery mechanically interchangeable with a 1.5V silver or alkaline size 1154 cell. Use of a battery of significantly higher voltage than equipment is designed for can cause permanent damage, but use of a cell of the right voltage but unsuitable characteristics can only lead to short battery life or failure to operate equipment.
Most of button cell battery is not rechargeable due to the inferior capacity and high self-discharge rate of rechargeable batteries. There are a few rechargeable button cell batteries, such as lithium-ion rechargeable batteries intended to replace CR-series lithium manganese dioxide batteries in devices with relatively high current consumption or some devices with solar panels which can be used to keep the battery charged under certain circumstances. Rechargeable NiCd button cells were often components of the backup battery of older IBM PC compatibles as well as Amiga computers.
www.battery-products.com. Chung Pak Battery Works Limited is one of the major battery maker and exporter in Hong Kong. It offers famous brands -- "Vinnic Battery" and "Vinergy Battery", which are welcomed by customers from all around the world. Article come from:http://www.chinaphoneparts.com/index.php/what-is-lithium-button-cell.htm More Article come from:More Article come from:http://manufacturersnews.blog.com/
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