As electronic identity systems for electric bicycles (RFID license plates) continue to roll out and community management becomes more refined, RFID key cards are evolving from simple “keys” into multi-purpose tools that combine key functions, charging authentication, and access control. Today, we are talking about RFID epoxy cards (also known as crystal epoxy cards or resin-coated cards) have become one of the most common RFID products used in the management and daily operation of electric bicycles and e-scooters.
An RFID epoxy card (also called a crystal epoxy card, resin card, or edge-framed epoxy card) is a standard or custom-shaped card based on a traditional RFID/NFC chip card that is encapsulated with transparent epoxy resin.
Common chips include NTAG213 and Mifare series. The frequency is typically 13.56 MHz (high-frequency/NFC), although low-frequency and ultra-high-frequency versions are also available. The reading distance is usually 1–8 cm.
Electric bicycle key / induction start card
Many brands support NFC/RFID induction starting. Riders simply hold the epoxy card near the sensor area on the handlebar or front of the vehicle to unlock or start the bike, replacing traditional mechanical keys. This is more convenient and reduces the risk of losing keys.
Charging station induction card
Used for identity authentication and billing at public or residential charging piles. Users swipe the card to start charging. Encrypted versions prevent unauthorized copying and card cloning.
Community / park access control card
Linked with community barriers and unit doors to enable contactless or short-range access for electric bicycles. Some systems bind the epoxy card to the vehicle registration information, achieving “one vehicle, one card.”
Personalized customization and anti-counterfeiting
Owner information, license plate numbers, logos, QR codes, and other details can be printed on the card. The appearance is attractive and durable, while encrypted chips effectively prevent duplication.
High durability: The epoxy resin layer is waterproof, dustproof, scratch-resistant, and UV-resistant, making it ideal for outdoor use and daily wear.
Attractive and portable: Crystal-clear or color-printed designs can be made into key fobs that hang conveniently on a keychain or are carried easily.
Reasonable cost: Low unit price in bulk production makes them suitable for large-scale distribution.
Good security: Support for encrypted authentication offers better anti-cloning performance than ordinary IC cards.
High compatibility: They work directly with existing 13.56 MHz readers, charging piles, and access control systems.
With their combination of durability, aesthetics, and portability, RFID epoxy cards have become a mainstream choice for electric bicycle keys and identity management. As management of electric bicycles becomes more refined (electronic identity, charging regulations, and access control), the application of these products will continue to expand.
About Guangdong Xinye Intelligent Label Co., Ltd.
Guangdong Xinye Intelligent Label Co., Ltd. is a professional Chinese manufacturer of smart cards and RFID tags with more than 20 years of industry experience. Its headquarters and production base are located in Dalang, Dongguan, Guangdong, with an office in Shenzhen.
The company integrates product design, R&D, production, sales, and technical services, focusing on RFID/NFC IoT products. It has particularly mature mass-production experience in epoxy cards, NFC key cards, and charging induction cards for electric vehicle applications.
With over ２０ years of R&D, design, and manufacturing expertise, more than 100 honors, qualifications, and patents, and over 200 experimental, production, and testing devices, all products are manufactured in-house and comply with RoHS requirements. The company has obtained ISO 9001 quality management, ISO 14001 environmental management, and IATF 16949 automotive industry certifications. It possesses scalable and flexible production capacity that supports everything from small-batch sampling to large-volume delivery.
Xinye provides one-stop solutions covering chip selection, shape customization, printing, coding, and data writing. With stable quality and reliable delivery, it is a trusted source factory for electric bicycle RFID epoxy cards.
