CR (Cylindrical Type Lithium Manganese Dioxide Battery)
Maxell’s cylindrical type lithium manganese dioxide battery realizes stable discharge characteristics with its original sealing structure, improved electrical-conductivity structure, and negative electrode material. This battery’s long-term reliability makes it ideal for use as a power source in industrial applications such as IoT devices and smart meters (e.g. gas, water, electricity). Battery packs can also be produced to meet special customer requirements. For details, please contact your nearest Maxell dealer or distributor.
Topics
Apr. 08, 2022 Update Data sheet for high-capacity cylindrical type CR battery “CR17500AU” added
Feb. 17, 2021 News Maxell develops cylindrical type lithium manganese dioxide battery “CR17500AU” with industry’s highest capacity suitable for IoT devices
Features
High energy density
High energy density has been achieved by optimizing the filling rate of the material by means of a unique electrode structure.
Long-term reliability lasting more than 10 years*
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*. The self-discharge rate is about 0.5% per year.
- Designed lifetime at 20 deg. C when not yet used. Actual lifetime will vary depending on conditions such as discharge current and temperature.
Stable discharge characteristics
The original negative electrode material maintains low internal resistance even at high depths of discharge and ensures stable discharge.
Superior low-temperature characteristics
High safety due to internal short-circuit prevention structure
Supports various package design configurations
Package design proposals are available according to the customer’s needs. We have designed a wide range of packages for 1 to 35 batteries.
35 parallel batteries for outdoor usage
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.
UL Recognized Components
The cylindrical type lithium manganese dioxide battery is a UL (Underwriters Laboratories Inc.) recognized component. (User Replaceable)
Recognized models:CR17450A, CR17335A, CR17450AH, CR17500AU
Certification number: MH12568
Applications
- -Smart meters (e.g. gas, water, electricity)
- -IoT devices
- -Communication devices (e.g. 3G, LTE, LPWA)
- -In-vehicle devices
- -Security devices
- -Memory backup power
Battery power system for IoT
Specifications
| Model | NEW*3 CR17500AU |
CR17450AH | CR17450A | CR17335A | |
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| Nominal Voltage（V） | 3 | 3 | 3 | 3 | |
| Nominal Capacity(mAh)*1 | 3500 | 3000 | 2500 | 1650 | |
| Nominal Discharge Current（mA） | 1.0 | 1.0 | 5.0 | 5.0 | |
| Operating Temperature Range (deg. C) |
-40 to +85 | ||||
| Dimensions*2 | Diameter（mm） | 17 | 17 | 17 | 17 |
| Height（mm） | 50 | 45 | 45 | 33.5 | |
| Weight（g）*2 | 26 | 24 | 22 | 17 | |
| Data Sheets |  |
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| 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 down to 1.5V when discharged at a nominal discharge current at 20 deg. C.
As for other models, nominal capacity indicates duration until the voltage drops down to 2.0V when discharged at a nominal discharge current at 20 deg. C. - Dimensions and weight are for the battery itself, but may vary depending on the shape of terminals or other factors.
- Evaluation samples with the same specification as mass production are available. Please contact us at your nearest Maxell office for the latest information.
- Data and dimensions are not guaranteed. For further details, please contact us at 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].
