Varta CoinPower CP 1654 A4 Technical Handbook
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Varta CoinPower CP 1654 A4 Technical Handbook

Rechargeable li-ion button cells generation a4
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Technical Handbook
CoinPower
Rechargeable Li-Ion Button Cells
Generation A4

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Summary of Contents for Varta CoinPower CP 1654 A4

  • Page 1 Technical Handbook CoinPower Rechargeable Li-Ion Button Cells Generation A4...

  • Page 2: Table Of Contents

    1.3 Applications  ________________________________________________ 1.4 General design and application criteria  _________________________ Construction and electro mechanical processes of CoinPower Batteries  _____________________________ MISCELLANEOUS  ___________________________________________ Specification table VARTA CoinPower Batteries  __________________ 2.2 Data-Matrix Code  ___________________________________________ CHARGING AND DISCHARGING  ________________________________ Charging  ___________________________________________________ 3.2 Discharging  ________________________________________________ 3.3 Charging IC ...

  • Page 3: General Information

    1. General Information Definitions 1.2 Features 1.3 Applications 1.4 General design and application criteria 1.5 Construction and electro mechanical processes of CoinPower Batteries COINPOWER | 3...
  • Page 4 VARTA Microbattery is a leading manufacturer VARTA CoinPower Batteries of batteries and provides professional support worldwide to customers to help them to design VARTA • 6 patented innovations batteries into their applications. Quality, reliability, • Capacity from 29 mAh to 155 mAh high performance and customer satisfaction are the •...

  • Page 5: Definitions

    COINPOWER | GENERAL INFORMATION 1.1 Definitions Typical Capacity Unless otherwise stated, specified values are valid for operation at room temperature 20  º C ± 2  º C. The typical capacity is the average capacity at a discharge rate of 0.1 CA to a final discharge voltage of 3.0 V.

  • Page 6: Features

    COINPOWER | GENERAL INFORMATION 1.2 Features VARTA CoinPower batteries are the first choice for a number of modern high-tech portable products. They provide a long lasting, reliable main power source which is lightweight and occupies a minimum of space in the host device.

  • Page 7: Applications

    COINPOWER | GENERAL INFORMATION 1.3 Applications VARTA CoinPower batteries are especially suitable for modern electronic applications such as Bluetooth Mono  /   S tereo Headsets, Sensors for Fitness  /   S port  /   Healthcare, Smart Watches, Wearable Technology, Smart Car Keys and many more. These cells...

  • Page 8: General Design And Application Criteria

    • Operating temperature range • Mechanical properties • Available space • Environmental conditions You can choose a cell from the VARTA CoinPower range to operate within the following limits: Operating Voltage: 3.0 V… 4.3 V Capacity: 29 mAh to 155 mAh Height: 4.0 ...

  • Page 9: Construction And Electro Mechanical Processes Of Coinpower Batteries

    This is why the energy density of the CoinPower batteries is one of the highest of any cell in this small form factor. Construction of VARTA CoinPower FIG. 8 In Li-Ion batteries such as in the CoinPower cells Lithium Ions move from the anode to the cathode during discharge and from the cathode to the anode when charging.

  • Page 10: Miscellaneous

    2. Miscellaneous Specification table VARTA CoinPower Batteries 2.2 Data-Matrix Code COINPOWER | 10...

  • Page 11: Specification Table Varta Coinpower Batteries

    COINPOWER | MISCELLANEOUS 2.1 Specification table VARTA CoinPower Batteries The CoinPower cell is available in four different diameters and three different heights (4.0 mm, 5.0 mm and 5.4 mm). See specification table below. Rechargeable Button Cells (Li-Ion) CoinPower TYPE DESIGNATION TYPE NO.
  • Page 12 COINPOWER | MISCELLANEOUS Model Number Model Number CP16  5 4 A4 The model numbers are two uppercase letters and a figure consisting of four digits. The version number consists of one letter and one figure as Battery Cell Height shown in the example. Type (CP –...

  • Page 13: Data-Matrix Code

    COINPOWER | MISCELLANEOUS 2.2 Data-Matrix Code In order to make every single cell fully traceable, two data matrix codes are printed on lid and cup of each one. This codes provide information about the production date, the version and the winder or assembly line. Please note that the codes are printed on every individual cell produced in Germany.
  • Page 14 2D Datamatrixcode CP9440 A4, CP9454 A4 Data-Matrix Code 0123789ABC999 Year Unique cell 2020 – 0 identification code 2021 – 1 Day of the year 0124010740 Date Code 0124010740 Year Version number VARTA Day of CPM Line ID  the year COINPOWER | 14...

  • Page 15: Charging And Discharging

    3. Charging and Discharging Charging 3.2 Discharging 3.3 Charging IC COINPOWER | 15...

  • Page 16: Charging

    COINPOWER | CHARGING AND DISCHARGING 3.1 Charging Applicable for CP1654, CP1454, CP1254, Rapid Charging CP1240, CP1250 Furthermore the A4-Version can be rapid charged with a two-step procedure: A charging rate of 2C can be The CoinPower A4-Version can be charged with different charging rates and procedures. In order to find applied up to max.
  • Page 17 For more information please consult your Key Account Manager or contact us on our website (www.varta-microbattery.com/en/ contact#form). Standard Charging The CoinPower A4-Version can be standard charged with a maximum C-Rate of 0.5C over the entire...

  • Page 18: Discharging

    COINPOWER | CHARGING AND DISCHARGING 3.2 Discharging Thanks to its coiled electrode design the CoinPower cell(s) is  /   a re in an abnormal state. In case the individual series can handle very high discharge currents without cell voltage falls below 2.0 V PCM shall have functions any damage or reduction in cycle life while operating to disconnect the cell(s) from electronic circuit and cell with a very low voltage drop.

  • Page 19: Charging Ic

    Texas Instruments • BQ 24040 • BQ 24050 • BQ 24052 Linear Technology • LT 4070 • LT 4071 Please note: There are many more charging ICs available on the market for use in charging VARTA CoinPower batteries. COINPOWER | 19...

  • Page 20: Reliability And Life Expectancy

    4. Reliability and life expectancy COINPOWER | 20...
  • Page 21 500 cycles with a remaining capacity of >80 % of its nominal value when new. Even at elevated temperature and higher discharge currents the VARTA CoinPower cells show excellent performance. This will provide extended battery life even after daily usage and in high consumption applications.

  • Page 22: Storage

    5. Storage COINPOWER | 22...
  • Page 23 COINPOWER | STORAGE Storage Storage Characteristic @ Various Temperatures VARTA CoinPower batteries are delivered in a state-of- Remaining Capacity charge (SoC) of approximately 30% of their full capacity. Start with partly charged cells cc-cv1C/ 3.64V/ I<0.03C @ 20degC, discharge 0.2C/ EOD 3V first cycle @ 20degC...

  • Page 24: Safety

    6. Safety Product safety has always been a very important consideration for VARTA Microbattery. Besides all the technical features which give its high performance, the CoinPower series also provides the highest safety level in the market for small Lithium rechargeable batteries.

  • Page 25: Safety Tests

    Below are more details about the various safety tests which are performed to verify a battery’s compliance with the requirements of each of the three standards. VARTA Microbattery regularly performs additional safety tests in order to ensure the high safety level of the CoinPower series.

  • Page 26: Product Safety

    COINPOWER | SAFETY 6.2 Product Safety The CoinPower Series provides for very safe operation. Safety features in the components used in the CoinPower battery, as well as in its mechanical design, ensure that the CoinPower cell will be safe even when subject to severe abuse conditions. COINPOWER | 26...
  • Page 27 COINPOWER | SAFETY 6.2.1  Current Interruption De- vice (CID) Al cathode Lower isolation current collector tape Contact area for welding CID (Current Upper isolation Interruption Tape Device) Normal state during use Abusive Case (charge  /   d ischarge  /   s torage) during overcharging CID is in normal status Cup will move up due to internal pressure...
  • Page 28 COINPOWER | SAFETY 6.2.2 Venting Holes The cup of every CoinPower battery is designed with three venting holes around the circumference. (every 120  º ) In the normal state these venting holes are covered by the foil gasket on the inside. When subject to abuse (e.g. continuous overcharging) the lid will lift up and excessive pressure can be released through these holes.

  • Page 29: Protection Circuit Module (Pcm)

    COINPOWER | SAFETY 6.3 Protection Circuit Module (PCM) The Protection Circuit Module (PCM) is a device to protect a battery against the risk of abnormal events such as over-discharging or short circuits. This is mandatory for all Lithium cells. A PCM is not only used to protect the cells and applications from excessive discharge and recharge current, but also to maintain the nominal operating conditions for the cell and battery pack.

  • Page 30: Handling Precautions And Prohibitions

    7. Handling Precautions and Prohibitions In this section there is information about the handling precautions and prohibitions for the VARTA CoinPower series. If you have any questions regarding any point please consult your Key Account Manager. General Information 7.2 Charging 7.3 Discharging...

  • Page 31: General Information

    General Supply Notices for VARTA Microbattery Charging at above 4.3 V, which is the absolute maximum GmbH CoinPower Batteries“ shall be applied to VARTA voltage, is strictly prohibited. The charging has to be CoinPower batteries. It shall be brought to the attention done according to the data sheet.

  • Page 32: Discharging

    COINPOWER | HANDLING PRECAUTIONS AND PROHIBITIONS 7.3 Discharging Prohibition of Trickle Charging or Discharge Current Continuous Charging The cell shall be discharged at less or equal than the maximum discharge current specified in the Data Sheet. Trickle charging or continuous charging is prohibited. Trickle charging conditions or continuous charging can High discharge current may reduce the discharging lead to overcharging, generation of internal pressure...

  • Page 33: Protection Circuit Module (Pcm)

    Technician-Replaceable Appliances deterioration of cell performance. The overcurrent can occur by external short circuit. VARTA Lithium-Ion batteries of type CoinPower do not fulfill the requirements for being User replaceable, as the reverse polarity installation cannot be prevented. Over-Discharge Prohibition...

  • Page 34: Storage

    Avoid applying mechanical stress (such as tension, pressure) to cell itself during assembly. Do not remove or disassemble any component from the original VARTA supply configuration. Do not subject cell to higher temperatures than specified in Data Sheet provided.
  • Page 35 /   o r disposal of the finished products, and shall Prohibition of Dumping of Cells into Fire defend, indemnify, and hold VARTA Microbattery GmbH, Never incinerate nor dispose of cells into fire. its subsidiaries, customers, and suppliers and its...
  • Page 36 COINPOWER | HANDLING PRECAUTIONS AND PROHIBITIONS Battery Compartment Design Warning Protection circuit shall be isolated from the cell to The following warning language is to be provided with diminish damage from any electrolyte leakage which the information packaged with the small cells and may occur by mishap.

  • Page 37: Marking

    COINPOWER | HANDLING PRECAUTIONS AND PROHIBITIONS 7.8 Marking The customer shall prepare comprehensive instructions and appropriate markings for end users. The assembled device shall be provided with packing, handling and safety instructions regarding cell usage, storage, and replacement, and shall be marked with information in accordance with applicable regulations.

  • Page 38: Battery Assembly

    8. Battery Assembly Besides the bare cells, VARTA Microbattery provides customized solutions for all kinds of battery assembly in order to meet customers’ individual requirements. VARTA can offer many different cell configurations together with the necessary connections such as wires and tags.

  • Page 39: Single Cell Assembly

    PCB. For this purpose, every tag Therefore VARTA Microbattery offers standard cell supplied by VARTA is tin-plated in order to improve its configurations with solder tags for THT connection, solderability. Please consider the following guidance on wires and many more.

  • Page 40: Application Check List

    9. Application check list COINPOWER | 40...
  • Page 41 COINPOWER | APPLICATION CHECK LIST Application check list In order to find the best possible energy solution for your application, VARTA Microbattery needs certain information. Please contact us on our website (www.varta-microbattery.com/en/contact#form) or get in direct contact with your Key Account Manager.

  • Page 42: Glossary

    10. Glossary COINPOWER | 42...
  • Page 43 COINPOWER | GLOSSARY Glossary OEM (Original Equipment Open circuit voltage (OCV) Secondary battery Manufacturer) The voltage of the battery when it is Battery that can be reused after it is a broad term whose meaning has disconnected electrically from outside is charged. There are Ni-Cd and Ni- evolved over time.
  • Page 44 COINPOWER | GLOSSARY Cut off voltage Lithium-Ion Charger (CCCV) THT connection The limiting voltage which terminates Li-Ion batteries commonly require a Through-hole technology, also discharge. This voltage generally constant current, constant voltage spelled „thru-hole“, refers to the corresponds to the lower usable (CCCV) type of charging algorithm.
  • Page 45 Fax +852 28 97 76 09 Tel: +86 755 3397 4791 Representations and distributors in all major countries worldwide. Please see webpage. Subscribe to our YouTube channel. www.youtube.com/VARTAMicrobatteryGmbH www.linkedin.com/showcase/varta-microbatteries www.youtube.com/VARTAMicrobatteryGmbH VARTA Microbattery GmbH is a company of VARTA AG. www.varta-ag.com...

This manual is also suitable for:

Coinpower cp 1454 a4Coinpower cp 1254 a4Coinpower cp 1250 a4Coinpower cp 1240 a4Coinpower cp 9454 a4Coinpower cp 9440 a4 ... Show all

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