As the core component of energy storage, batteries are widely used across various electronic devices. With the growing prevalence of fast-charging technology, high-power charging places increasingly stringent safety requirements on both battery cells and Battery Management Systems (BMS). If the BMS lacks sufficient safety mechanisms, it can easily lead to battery-related accidents such as fires, combustion, or even explosions.
In recent years, battery safety incidents have occurred frequently, becoming a “Sword of Damocles” hanging over consumers and businesses alike. From the explosion of BB doll batteries in children’s toys, to walkie-talkie incidents in the Middle East, as well as smartphone, e-bike, and electric vehicle fires, numerous cases highlight that battery safety is not only crucial to consumer well-being but also a matter of survival for enterprises.
To address these safety concerns and prevent counterfeit or substandard batteries from being used in portable devices, Chipsea Technologies has developed a series of BMS products that incorporate digital security authentication, establishing a strong line of defense for battery safety.
Digital Authentication: The Ultimate Line of Defense for Battery Safety
The digital authentication feature in Chipsea’s BMS series assigns a unique “digital ID” to each battery. It supports two algorithmic levels to meet diversified safety needs:
- On one hand, lightweight HMAC authentication offers high efficiency and ease of implementation, meeting the digital authentication demands of consumer-grade products.
- On the other, ECC (Elliptic Curve Cryptography), a high-security algorithm compliant with national financial standards, delivers robust anti-attack capabilities for high-sensitivity applications.
This flexible algorithm selection according to product positioning helps eliminate counterfeit batteries and unauthorized replacements at the source, ensuring device safety and preserving brand value.
Beyond identity authentication, Chipsea’s BMS also enables end-to-end encrypted data transmission to prevent malicious attacks. Key real-time data such as voltage and temperature are processed using the SHA256 algorithm to generate tamper-proof “data fingerprints.” This technology ensures the integrity of data during both transmission and storage. Even in the face of man-in-the-middle attacks, hackers cannot forge valid instructions—thus effectively preventing battery overcharge, over-discharge, and other hazardous events.
Additionally, Chipsea BMS meets multiple safety compliance standards, including GM (China’s national cryptographic standard level 2) and CC EAL4+ (Common Criteria Evaluation Assurance Level 4+), helping clients pass industry certifications quickly and meet mandatory market safety requirements—paving the way for smooth product launches.
Hardware Crypto Engines and Independent Security Island Design
From a technical standpoint, Chipsea’s BMS chip integrates security modules deeply within the chip itself, creating a “chip-level shield.” One of its major highlights is the hardware-based cryptographic engine, which supports accelerated ECC and SHA256 operations—improving signature verification speed while reducing power consumption.
The independent security island design ensures that key storage and encryption processes are carried out in a physically isolated area. Even if the main controller is compromised, sensitive information remains secure. Chipsea also integrates a true random number generator (TRNG) to generate high-entropy random numbers, eliminating the risk of key prediction due to pseudo-random flaws.
To further safeguard against invasive attacks, the chip layout features secure wiring techniques to prevent physical key extraction.
In terms of performance, Chipsea’s BMS chip outperforms traditional software-based encryption solutions, which often consume excessive CPU resources and cause response delays. Thanks to its hardware-accelerated engine, encryption operations can run independently without interrupting core BMS algorithms—achieving both security and performance.
Chipsea is also committed to building an open development ecosystem, empowering clients with agile development capabilities. The company provides a key management SDK, usage examples, and documentation for various cryptographic interfaces, enabling faster secondary development and quicker product launches.
In the Era of IoT, Battery Safety Is No Longer Optional—It’s Essential
As the world embraces the Internet of Everything, battery safety has evolved from a “functional demand” to a “survival necessity.” With its hardware-accelerated crypto engine, secure island architecture, and open ecosystem, Chipsea’s BMS sets a new industry benchmark—offering customers a one-stop BMS security solution and striving to ensure that every battery is safe and trustworthy.
