Silver Oxide Batteries

Silver oxide batteries
Silver oxide batteries are small-sized primary batteries with high capacity and stable discharge characteristics. They are suitable for medical devices and precision instruments. All models are 100% made in Japan, and environmentally friendly (0% mercury).

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Standard >
High Drain (New product) >

Micro Batteries for Watches

Selection Guide

Series Lineup

Discharge Characteristics vs. Temperature / Capacity
Principle of Silver Oxide Battery
Cross Section


Murata Icon X Selection Guide

  Standard Extensive product lineup from small & thin size to high capacity models
  High Drain
(New product)
Ideal for medical devices that require high current load characteristics

Type Standard High Drain
Operating temperature -10°C to 60°C -10°C to 60°C
Maximum pulse discharge current to maintain min.
1.2V at 100ms upon DOD 0% (23°C)
40mA 120mA

Murata Icon X Feature

  • High energy density
    High energy density has been achieved owing to the Murata's original high-precision material-mixing technology. The use of antioxidant, high performance separators also contributes to improved storage characteristics.
  • Excellent stable discharge characteristics
    Constant voltage output is available during the discharging.
  • Excellent leakage resistance
    Murata-unique sealing structure, coupled with special sealing- material treatment, has helped accomplish the excellent leakage resistance.
  • RoHS  directive・European Directives
    This product does not contain Mercury (Hg), Cadmium (Cd), nor Lead (Pb), and conforms to EC regulation values (Directive 2006/66/EC, 2013/56/EU).
    Battery pack are excluded from RoHS directive
    (DIRECTIVE 2011/65/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment).

Murata Icon X Applications

  • Medical devices
  • IoT devices
  • Precision instruments

Murata Icon X Series Lineup

*Data is not guaranteed, and is provided for reference purposes only.
*Please contact us for other models.

Murata Icon X Discharge Characteristics vs. Temperature / Capacity

Discharge Characteristics vs. Temperature / Capacity (High Drain Type, W)

Murata Icon X Principle of Silver Oxide Battery

Silver oxide (Ag2O) is used for the active cathode material, and Specially processed fine zinc-alloy powder is used for the active anode material. Potassium hydroxide is used as an electrolyte.
Battery discharge reactions are follows
Principle of Silver Oxide Battery

With open circuit voltage of approx. 1.55V, the battery voltage is extremely stable and impedance remains low during discharge.

Murata Icon X Cross Section

Cross Section

Murata Icon X Reference