Manufacturing & Automotive
China
CALB is a manufacturer and supplier of lithium-ion batteries based in Changzhou, China. As the third-largest electronic vehicle (EV) battery manufacturer in China and the fourth-largest EV battery manufacturer globally, CALB is a major player in the industry, with clients such as Changan, Geely, and Guangzhou Automobile Group (GAC), among others.
As a leading EV battery manufacturer and supplier, CALB has experienced strong year-over-year growth, supported by its smart manufacturing initiatives built on Cloudera’s Open Data Lakehouse with Apache Iceberg.
Legacy Limitations to Award-Winning Innovation
CALB, the recipient of the 2025 Cloudera Data Impact award for Open Data Lakehouse and Iceberg Innovation, sought an opportunity to improve the production and security of its EV battery manufacturing. Aiming to power its smart manufacturing initiatives, CALB planned to improve manufacturing efficiency and lay the groundwork for a next-generation Iceberg lakehouse, establishing a solid technical foundation for future AI and data platforms.
From a security perspective, CALB required enterprise-grade data encryption and protection for its battery formula data, but the legacy system lacked the fine-grained access controls required by CALB.
Thanks to Cloudera, CALB achieved these goals and much more.
Scaling Performance, Securing the Future
The project went into production during the first quarter of 2025 and was completed in the fourth quarter of the same year. To accelerate production speeds while maintaining security standards, CALB built a petabyte-scale enterprise data lake with Cloudera to support research and development, production, and supply chain needs.
The platform, deployed as an enterprise-wide data lake, integrates core system data sources to support full lifecycle analysis of batteries.
Additionally, the data lake, built on Cloudera, delivered the following benefits:
Implemented column-level dynamic data masking with Apache Ranger and Kerberos
Addressed critical security needs for battery formula data
Eliminated data bottlenecks by resolving high-concurrency query challenges, enabling real-time analytics for R&D teams.
Additionally, CALB achieved 100% audit log coverage and ISO 27001 certification, the world's best-known standard for information security management systems. The certification encompasses the establishment, implementation, maintenance, and continual improvement of an Information Security Management System (ISMS) to manage risks, protect data, and ensure regulatory compliance.
Currently, CALB is operating at scale in a production environment, with an Iceberg-based Lakehouse architecture upgrade planned for the future to continue the EV battery manufacturer’s technology initiatives.
Moving forward, CALB aims to replace its legacy extract, transform, and load (ETL) with zero-copy, cross-site data sharing to accelerate data transmission and cut cross-domain data collaboration costs by 30%.
