Custom Battery Solutions for Smart Cards
Ultra-thin, lightweight and low-power lithium battery solutions for biometric cards, display cards, dynamic security cards and connected smart cards.
LithoTop develops customized batteries for active smart cards requiring compact dimensions, low self-discharge, stable voltage and reliable long-term operation.
Reliable Power for Active Smart Card Electronics
Smart cards are evolving from passive identification products into active electronic devices with displays, fingerprint sensors, dynamic security codes, wireless communication and embedded data-processing functions.
Modern smart cards may integrate e-paper or LCD displays, fingerprint-recognition modules, dynamic CVV security codes, Bluetooth or NFC communication, microcontrollers, secure elements, LED indicators and user-interface buttons.
These components require a compact power source that fits within a card-shaped structure without making the finished product excessively thick or heavy.
LithoTop provides customized ultra-thin LiPo batteries, high-voltage LiPo batteries, thin Li-MnO₂ primary batteries and custom-shaped batteries for active smart cards and compact electronic card systems.
Typical Smart Card Applications
Customized battery solutions for payment, authentication, identification, monitoring and connected card-shaped electronic devices.
Common Battery Types for Smart Cards
Battery chemistry and structure should be selected according to total product thickness, available battery area, standby power, pulse current and rechargeability.
LithoTop Battery Solutions for Smart Cards
Providing complete electrical, mechanical and manufacturing information helps LithoTop evaluate the most suitable battery design.
Typical Smart Card Battery Specifications
| Parameter | Typical Customization Range |
|---|---|
| Nominal Voltage | 3.0V / 3.7V / 3.8V / 3.85V |
| Charging Voltage | 4.2V / 4.35V / 4.4V |
| Capacity | 10mAh–500mAh |
| Battery Chemistry | LiPo / High-Voltage LiPo / Li-MnO₂ |
| Thickness | Approximately 0.4mm–3.0mm |
| Battery Shape | Rectangular / Ultra-Narrow / Custom Shape |
| Discharge Profile | Low Average Current with Intermittent Pulses |
| Protection | Low-Profile PCM Optional |
| Temperature Sensor | NTC Optional |
| Terminal | Tabs / Flexible PCB / Wire / Custom |
| Rechargeability | Rechargeable or Primary |
Actual battery thickness, capacity and discharge capability must be confirmed according to the available card area, total product thickness, operating current, pulse load, charging method and required service life.
Why Smart Card Manufacturers Choose LithoTop
Send us your available battery dimensions, maximum thickness, capacity, standby current, pulse-current requirements, charging method and lamination conditions. LithoTop will evaluate a suitable ultra-thin battery solution for your project.
Ultra-Thin Engineering
Controlled Manufacturing
OEM and ODM Support
Frequently Asked Questions
What type of battery is used in a smart card?
Active smart cards commonly use ultra-thin LiPo batteries for rechargeable designs or thin Li-MnO₂ primary batteries for non-rechargeable applications requiring long storage life.
How thin can a smart card battery be?
LithoTop can develop ultra-thin batteries starting from approximately 0.4mm, depending on battery area, required capacity, chemistry, terminal design and manufacturing tolerance.
Can LithoTop customize the battery size for a card-shaped device?
Yes. Battery thickness, width, length, capacity, shape, tab direction and terminal position can be customized according to the smart card’s available internal space and component layout.
Can the battery fit around a fingerprint sensor or display?
Yes. Ultra-narrow, stepped, L-shaped or other custom-shaped battery solutions can be evaluated to avoid fingerprint sensors, displays, antennas, chips and other internal components.
Are smart card batteries rechargeable?
Smart card batteries can be rechargeable or non-rechargeable. Ultra-thin LiPo batteries are suitable for rechargeable cards, while thin Li-MnO₂ primary batteries are suitable for long-life disposable designs.
Can a smart card battery support fingerprint sensor activation?
Yes. The battery should be selected according to the fingerprint sensor’s standby current, activation current, peak-current duration, voltage requirements and target number of operating cycles.
Can the battery withstand card lamination?
Compatibility depends on the lamination temperature, pressure and process duration. LithoTop recommends validating the complete production process or installing the battery after high-temperature lamination steps.
Can LithoTop customize ultra-thin protection circuits?
Yes. Low-profile PCM or flexible PCB protection circuits can be customized according to the available thickness, charging system and required protection functions.
What information is required for a custom smart card battery?
Customers should provide card dimensions, available battery area, maximum battery thickness, required capacity, standby current, peak current and duration, charging method, terminal position, operating temperature and lamination conditions.
What certifications can LithoTop support?
Depending on your target market and project requirements.
