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Heat-resistant Lithium Manganese Dioxide Battery

CR2032W, CR2050W, CR2450W, CR2477W

Heat-resistant Lithium Manganese Dioxide Battery

Description
Coin Manganese Dioxide Lithium Batteries are being used in a broad range of applications, from quarts watches and clocks, a backup power sources for memories requiring long-term reliability over 10 years to TPMS (Tire Presuure Monitoring System), IoT equipment, and car keyless entry systems. The market for Coin Manganese Dioxide Lithium Batteries is, therefore, rapidly expanding. Within this diversifying field of electronics, Murata is developing and producing Coin Manganese Dioxide Lithium Batteries from a new perspective: it is fulfilling market needs while accumulating data on discharge characteristics, long-term reliability, and safety characteristics of batteries. Lithium metal, used for the anode in Coin Manganese Dioxide Lithium Batteries, has the largest electric capacity per unit weight (3.86 Ah/g) among all the materials usable for the anode. Thus, batteries with a high energy density can be produced. Also, by using different active materials for the cathode, batteries with diverse characteristics can be made. Murata has commercialized the Coin Manganese Dioxide Lithium Batteries, which uses manganese dioxide for the active cathode material for superior stability.
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Features
• Lightweight, High Voltage and High Energy Density
The battery voltage is 3V, almost double that of normal alkaline or manganese batteries. This means that the number of batteries required for equipment can be halved for maximum space saving and weight reduction.

• Excellent Discharge Characteristics
Voltage characteristics remain stable even for a long period of discharge, greatly improving the reliability of equipment that uses the battery. Such equipment is also maintenance-free (battery replacement is seldom required).

• Outstanding Temperature Characteristics
Murata's original organic electrolyte provides superb characteristics over a wide range of temperature from low to high.

• -40 to +125 degrees C (Heat-resistant type)
• Excellent Leakage Resistance
The newly developed battery construction and electrolyte ensure maximum leakage resistance over a long span of time.

• Excellent Long-Term Reliability
Carefully selected active materials are used for the active material as well as for the electrolyte. These materials are sealed by Murata's innovative technology to minimize battery self-discharge. The annual self-discharge rate at room temperature and normal humidity is less than 1% of the nominal capacity.
Specification
CR2032W: Nominal Voltage 3V, Nominal Capacity 210mAh, recommended continuous discharge current ≦ 1mA,
operating temperature range -40 ° ~ 125 °, diameter 20.0mm, height 3.2mm, weight 3.1g

CR2050W: Nominal Voltage 3V, Nominal Capacity 345mAh, recommended continuous discharge current ≦ 1mA,
operating temperature range -40 ° ~ 125 °, diameter 20.0mm, height 5mm, weight 4.2g

CR2450W: Nominal Voltage 3V, Nominal Capacity 550mAh, recommended continuous discharge current ≦ 1mA,
operating temperature range -40 ° ~ 125 °, diameter 24.5mm, height 5mm, weight 6.7g

CR2477W: Nominal Voltage 3V, Nominal Capacity 1000mAh, recommended continuous discharge current ≦ 1mA,
operating temperature range -40 ° ~ 125 °, diameter 24.5 mm, height 7.7mm, weight 11g
Safety/Quality Approvals
MSDS / UN38.3 / RoHS / REACH / UL Identification / SGS Report / Letter of Confirmation for No mercury
Applications
TPMS(tire pressure monitoring system)、ETC(electronic toll collection system)、Factory automatlon instruments、
Memory back-up power source for SRAM and real time clock(RTC)、Other devices used in wide temperature environment
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