What is the function of the anode / electrolyte mixture composed mainly of manganese oxide in AA?

The function is create an electric current by sending a flow of electrons through the electrodes.

1.5V Silver Oxide Battery

Bacharach 3015-4790 Portable Area Gas Monitor for Nitrous Oxide (N2O); includes rechargeable battery pack, 120 VAC charging adapter and soft case $4,545.00 Bacharach 3015-4790 Portable Area Gas Monitor for Nitrous Oxide (N2O); includes rechargeable battery pack, 120 VAC charging adapter and soft case…

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Energizer Silver Oxide Button Cell – Silver Oxide – 1.5V DC $2.95 ENERGIZER WATCH/ CALCULATOR BATTERY…

Panasonic CR2032 Lithium 3V Coin Cell Battery – DL2032 KL2032 $1.49 CR2032 lithium button cells are commonly used in car security (car alarm/keyfob batteries), organizer (backup battery for PDA such as Psion etc), glucometer, camera, electric thermometer, calculator, computer equipment (memory backup battery), toys, communication equipment, electronic watches/clocks, card radios, data pack for video camera. Also known as: DL2032, BR2032, KL2032, L2032, ECR2032, 50…

Silver Oxide Watch Battery For 370 Button Cell $2.91 …

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Energizer 377-376 1.5v #377/376 Watch/Calculator Battery (5 Pack) $2.90 5 New Type 377/376 Energizer Batteries. This is a new set of 5 type 377/376 Energizer batteries. Brand New & Guaranteed Factory Fresh. The shelf life on Energizer batteries is 5 to 10 years. These batteries are commonly required for Swatch, Fossil, Timex and Casio popular brands. Energizer’s reported failure rate is far less than 1/1000 of 1%. This devotion to consistent quality has led it to cont…