The First in the World to Achieve Silver Oxide/Alkaline Button Batteries with 0% Mercury

In conventional silver oxide and alkaline button batteries, mercury has been added to the anode in order to control battery swelling resulting from the emission of gas.

Conventional Mercury-containing Batteries

The Realization of 0% Mercury through New Murata Technology

‘Gas Suppression Effect (Block System 1)’
In place of conventional gas emission suppression mechanisms employing mercury, Murata has developed its own original gas-suppressing technology using corrosion-inhibiting, high performance zinc alloy powder and an anode current collector with a special corrosion-proof finish to achieve a silver oxide battery with 0% mercury.

‘Gas Absorption Effect (Block System 2)’
In addition to its silver oxide battery technology, Murata has adopted original technology that mixes gas-absorbing material with the cathode to realize 0% mercury in its alkaline button batteries as well. Murata has eliminated the use of mercury in its entire lineup of button/coin type batteries while still achieving performance equal to or greater than that of conventional batteries.

New Murata Technology: Gas Suppression Effect (Block System 1), Gas Absorption Effect (Block System 2)

New Murata Technology: Gas Suppression Effect (Block System 1), Gas Absorption Effect (Block System 2) * A Murata study