Epsilon & Daejoo Collaborate On Silicon-Graphite Anode To Boost EV Battery Capacity

Abhijeet Singh
07 Nov 2024
01:04 PM
1 Min Read

New joint development aims to achieve 50% higher discharge capacity for lithium-ion batteries.


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Epsilon Advanced Materials (EAM) from India and South Korea’s Daejoo Electronic Materials have announced a partnership to develop a next-generation Silicon-Graphite composite anode for lithium-ion batteries (LiB). The collaboration aims to create a high-capacity anode material that enhances battery discharge capacity by over 50%, a development that could have a significant impact on the electric vehicle (EV) industry. By merging Epsilon’s expertise in graphite production with Daejoo’s silicon technology, the companies hope to deliver a product that outperforms current anode materials in terms of efficiency and longevity.

The planned Silicon-Graphite composite anode, branded as a Gen-1 material, is designed to achieve a specific capacity between 450-600 mAh/g, thus extending the lifespan of EV batteries and their discharge capacity. The combination of silicon’s high capacity with the stability of graphite aims to provide a durable solution to meet the demands of EVs and other high-power applications. The collaboration marks a strategic step in the race for advanced battery materials, with a significant focus on optimising battery life and performance for EVs, where range and efficiency are crucial.

Under the partnership, Epsilon will supply synthetic graphite for the development of SiOx-Graphite composites, which will be tested in both Epsilon’s and Daejoo’s laboratories. The first phase of development and evaluation is expected to be completed by the end of 2024, after which the companies will pursue material qualification with major cell manufacturers. If successful, the joint development could lead to the large-scale deployment of high-performance, cost-effective anodes that meet the increasing energy demands of modern mobility.

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