Established in 1995, Chijiu Battery Co., Ltd. are a high-tech China cell battery manufacturer and wholesaler engaged in the design, manufacturing and marketing of battery, charger, adapter and solar panels etc. Our custom cell batteries are extensively used in telecommunications, electronics, solar energy systems, electric vehicles, UPS, security systems, emergency lighting, power tools, mobile phone, digital camera & camcorder, MP3, laptop, portable DVD, blue-tooth, PDA and intelligent charger solution. To keep the GB/T7112-1998, IEC60086-2 standards. We implement the certificate system ISO9002 since 1998. In 2001 we passed the audit of ISO9001:2000 quality management system and ISO14001:1996 environment management system conducted by the world-renowned Det Norske Veritas (DNV) and had the certificates issued.

Silver Oxide Watch Battery For 384 Button Cell
The most common type of battery used today is the "dry cell" battery. There are many different types of batteries ranging from the relatively large "flashlight" batteries to the minaturized versions used for wristwatches or calculators. Although they vary widely in composition and form, they all work on the sample principle. A "dry-cell" battery is essentially comprised of a metal electrode or graphite rod (elemental carbon) surrounded by a moist electrolyte paste enclosed in a metal cylinder as shown below.
The alkaline dry cell lasts much longer as the zinc anode corrodes less rapidly under basic conditons than under acidic conditions.
Other types of dry cell batteries are the silver battery in which silver metal serves as an inert cathode to support the reduction of silver oxide (Ag2O) and the oxidation of zinc (anode) in a basic medium. The type of battery commonly used for calculators is the mercury cell. In this type of battery, HgO serves as the oxidizing agent (cathode) in a basic medium, while zinc metal serves as the anode. Another type of battery is the nickel/cadmium battery, in which cadmium metal serves as the anode and nickel oxide serves as the cathode in an alkaline medium. Unlike the other types of dry cells described above, the nickel/cadmium cell can be recharged like the lead-acid battery.

10 pack AG13 LR44 A76 357 Button Cell Battery
Product Dimensions: 2.1 ounces
No single IC at this time is capable of converting a single-cell output to 50V, but the 2-stage step-up converter of Figure 1 handles the task. Because the fixed-output, low-power boost converter (U1) accepts voltages in the range 0.9V to 5V, the circuit’s power source can include batteries of various chemistries and cell counts-such as one Li-ion cell, one to three alkaline cells, or one to four NiMH cells.
U1 provides a fixed 5V output that is stepped up by a low-cost boost controller (U2) to +50V. For input voltages above 1.8V, the circuit generates +50V at load currents above 6mA. For a single alkaline or NiMH cell, it generates +50V with more than 1mA of load current. (Both ICs come in small SOT23 packages.)
You should choose a MOSFET with breakdown voltage above 55V and a rated current above 0.8A. A 1N4148 or other low-cost silicon diode serves for the rectifier. The forward voltage drop across that diode is negligible in a +50V system. Because, moreover, the load current is low (single-digit milliampere range), the diode’s power dissipation is minuscule. A 47V zener diode (D2) in conjunction with 300k in the feedback loop lowers the circuit’s supply current.
In the most common type of dry cell battery, the cathode is composed of a form of elemental carbon called graphite, which serves as a solid support for the reduction half-reaction.

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