Friday, August 21, 2015

Button cell / Coin cell / palette lithium battery composition

Button cell, coin cell, or palette batteries are actually the same thing. Usually it is use for small electronic devices and most commonly in wrist watches - where some are rechargeable others simply need to be replaced when it is gone bad. This is an opened Lithium button cell battery


1. Can (Anode)
2. Separator (absorptive)
3. Electrolyte
4. Manganese oxide (cathode)
6. Nano sheet

The wire mesh like item is to increase the surface area thus increase the charge movement.

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Adjustable DC to DC step up voltage booster using LM2577 -Adj P+ chip

One simple circuit to step up voltage using LM2577 -Adj P+ chip. The schematic is from Texas Instrument and it works expected - and below is...