Smart Card

Smart cards are card-type smart terminals with built-in microchips.

They can be categorized by chip type (memory cards, logic encryption cards, CPU cards) and by power supply method (active cards and passive cards).

The passive smart card readers are powered by external sensors and do not require an internal battery (e.g., ordinary transportation cards, access cards).

The active smart cards have built-in power supplies, some with displays and buttons, requiring only an internal battery for continuous power. Examples include visual bank cards, BLE active personnel positioning cards, electronic hardware wallets, electronic employee badges, and IoT sensor smart cards.

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Why Ultra-Thin Battery Is The Preferred Solution For Smart Card?

The internal space of a smart card is extremely limited, and traditional batteries often cannot simultaneously meet the requirements of thickness, shape, weight, and battery life. For example, ordinary button batteries or conventional lithium batteries can no longer fully meet smart cards’ requirements for ultra-thin design and space utilization.

Our ultra-thin lithium batteries not only provide stable power in an extremely thin volume, but also support flexible structures and custom shapes. Furthermore, it can be embedded more easily in smart cards, thin cards, wearable cards, tag cards, and small IoT card devices for safe, stable cyclic charging.
Therefore, the development of active smart card products must be accompanied by a compatible built-in dedicated Ultra-Thin Battery.

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Our Ultra-thin Lithium Ion Battery Features

  • Ultra-thin cell design, as thin as 0.4mm
  • Flexible shape customization
  • Optimized energy density
  • Ultra-low self-discharge rate
  • Reliable stability under long-term encapsulation
  • Longer charge-discharge cycle life
  • Suitable for compact, sealed devices, safe and stable
  • Supports energy harvesting and contact charging
  • Thin lamination technology, compatible with card-level internal lamination processes
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Ultra Thin Battery Model Spec.

Model Capacity (mAh) Nominal Voltage (V) Internal Resistance (mΩ) Thickness (mm) Width (mm) Length (mm) Standard Charging Current (mA) Standard Discharging Current (mA) Max. Charging Current (mA) Max. Discharging Current (mA) Cycle Life
104538 ≥110 3.7 ≤250 ≤1.1 ≤45.5 ≤38.5 55 22 110 110 ≥500 cycles @0.5C
084545 ≥100 3.7 ≤350 ≥0.85 ≤45.5 ≤45.5 20 20 100 100 ≥300 cycles @0.5C
104545 ≥150 3.7 ≤250 ≤1.1 ≤45.5 ≤45.5 30 30 150 150 ≥500 cycles @0.5C