- Single Use
- CR (Cylindrical Type Lithium Manganese Dioxide Battery)
- Smart meters (e.g. gas, water, electricity)
- IoT devices
- Communication devices (e.g. 3G, LTE, LPWA)
- In-vehicle devices
- Security devices
- Memory backup power
Single Use. Cylindrical Type Lithium Manganese Dioxide Batteries
Description
CR (Cylindrical Type Lithium Manganese Dioxide Battery)
Maxell’s cylindrical type lithium manganese dioxide battery features Maxell’s unique sealing structure and an improved electrical-conductivity structure, and also uses a lithium-aluminum alloy as its negative electrode material to enable stable discharge. This battery’s high reliability makes it ideal for use as a power source in industrial applications such as security devices and electronic meters. Assembled batteries can also be produced to meet special customer requirements.
Features
MADE IN JAPAN – Cylindrical Type Lithium Manganese Dioxide Batteries (CR)
1.) High energy density*1
Our Made in JAPAN CR batteries are Ultra High Density. High energy density has been achieved by optimizing the filling rate of the material by means of a unique electrode structure.
*1 Volumetric energy density of 15% or more compared to typical cylindrical CR batteries (depending on battery size). Surveyed by Maxell as of March 2024.
2.) Long-term reliability lasting more than 10 years*2
The employment of a heat-resistant gasket and a laser-seal structure prevents water intrusion and electrolyte evaporation, ensuring long-term reliability that lasts more than 10 years*2. The self-discharge rate is about 0.5% per year.
*2 Designed lifetime at 20 deg. C when not yet used. Actual lifetime will vary depending on conditions such as discharge current and temperature.
2.) Stable discharge characteristics
The original negative electrode material maintains low internal resistance even at high depths of discharge and ensures stable discharge.
3.) Superior low-temperature characteristics
4.) High safety due to internal short-circuit prevention structure
About Maxell Cylindrical Type CR batteries
Maxell Cylindrical Type CR (lithium manganese dioxide) batteries are available only for equipment manufacturers as a built-in part. Therefore, Maxell does not supply these batteries for replacement directly to users of equipment with these batteries. When built-in Cylindrical Type CR batteries need to be replaced, please contact your equipment manufacturer. If you are planning to use Maxell Cylindrical Type CR batteries in your equipment as a built-in part, please contact Maxell.
- Smart meters (e.g. gas, water)
- IoT devices
- Communication devices (e.g. LPWA, cellular networks)
- In-vehicle devices
- Security devices
- Memory backup power
Details
Specifications
| Model | CR17335A | CR17450A | CR17450AH | CR17500AU | |
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| Nominal voltage (V) | 3 | 3 | 3 | 3 | |
| Nominal capacity (mAh)*1 | 1650 | 2500 | 3000 | 3500 | |
| Nominal discharge current (mA) | 5 | 5 | 1 | 1 | |
| Operating temperature range (deg. C)*2 |
-40 to +85 | ||||
| Dimensions*3 | Diameter (mm) | 17 | 17 | 17 | 17 |
| Height (mm) | 33.5 | 45 | 45 | 50 | |
| Weight (g)*3 | 17 | 22 | 24 | 26 | |
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| Diagram of with Terminals | |
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| Warnings | |
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| UL Certification number | MH12568 | ||||
- Nominal capacity of CR17500AU indicates duration until the voltage drops to 1.5 V when discharged at a nominal discharge current at 20 deg. C.
As for other models, nominal capacity indicates duration until the voltage drops to 2.0 V when discharged at a nominal discharge current at 20 deg. C. - When using at temperatures exceeding 60 deg. C, please consult Maxell in advance for conditions of use.
- Dimensions and weight are for the battery itself, but may vary depending on the shape of terminals or other factors.
- Data and dimensions are not guaranteed. For further details, please contact your nearest Maxell office.
- Contents on this website are subject to change without notice.
Construction
Principle and Reactions
The cylindrical type lithium manganese dioxide battery uses manganese dioxide (MnO2) as its positive active material and lithium (Li) as its negative active material.
| Positive reaction : | MnO2+Li++e– → MnOOLi |
|---|---|
| Negative reaction : | Li → Li++e– |
| Total reaction : | MnO2+Li → MnOOLi |
Safety precautions
If misused, this battery may deform, leak (the liquid inside the battery may leak to the outside), generate heat, explode, or ignite.
Since such misuse may cause injury or equipment failure, please be sure to read and observe [Warnings and Cautions].
