Anode Materials
Synthetic Graphite
Himadri’s Synthetic Graphite stands out as a prominent anode material due to its exceptional conductivity, stability, cycle life and well-defined crystalline structure. Engineered through various processes, including high-temperature treatment of precursor cokes, our synthetic graphite exhibits a unique structure of carbon atoms that facilitates efficient electron storage and release during charge and discharge cycles. These characteristics make synthetic graphite a preferred choice in LiB, where it serves as a reliable anode material, enabling extended cycle life and improved overall battery performance. Moreover, the controlled synthesis of our synthetic graphite offers opportunities for tailoring its properties, such as particle size and morphology, further optimizing its electrochemical performance to suit customers’ demanding needs.
| Captive (In-House) Precursor Coke | We have a commercial production plant of “Meso-Coke” – a precursor coke required for Anode Materials production. The In-House production of the precursor enables our full control on the quality control of our raw materials while also contributing significantly to the Domestic Value addition, thus supporting the concept of “Atma Nirbhar Bharat |
Natural Graphite
Natural graphite, derived from naturally occurring graphite ore, is another widely used anode material for LiB.
Natural graphite — most commonly in the ‘flake’ form — is mined primarily in few countries – China, some African Countries. Mined graphite is converted into anode-grade graphite through several steps.
Himadri, through its group company, has a stake in Graphite mines and due to the control of the mined raw materials, Himadri is able to deliver consistent high quality Natural Graphite Anode materials. This also helps in a secure and consistent supply of high-quality feedstock, ensuring stability of our process.
Himadri’s Natural Graphite aims to provide a higher capacity Anode Materials, and which has a high ESG score with respect to our peers, including Chinese Natural Graphite manufacturers.
Silicon Composites in Anode Materials
One of Himadri’s key missions is ‘Continuous Innovation’ of new products, aided by latest technology, to cater to the ever-evolving market demand. This has led us to develop Silicon Anode Materials in the form of Silicon Graphite and Silicon Carbon.
One of the most promising contenders for the upcoming phase of improvement in anode material production is silicon. This element stands out for its eco-friendliness, cost-effectiveness and its status as the second most abundant element in the Earth’s crust. These characteristics make it an excellent candidate for recaptured lithium ion, resulting in a remarkable specific capacity of up to 3578 mAh/g, nearly ten times higher than graphite.
Our Silicon Graphite offerings presents a remedy to the discharge capacity limitations of conventional graphite anode as also to the excessive volumetric expansion of silicon. Extensive research has been dedicated to investigating this combination, involving variations in the percentage of silicon mixed with graphite. Our SiG with a certain percentage of silicon content offers several benefits, namely:
Enhanced discharge capacity An approximate discharge capacity of 450-650 mAh/g, which is 1.25-2 times that of a conventional graphite anode.
50% Higher Cell Energy Density This enables longer range of distance covered by an EV in a single charge
Enabling fast charging
Our Silicon-Carbon (SiC) are here to power next-gen Lithium-ion batteries. SiC aims to deliver up to 50% increase in energy density over conventional graphite-only Lithium-ion battery cells. SiC battery anode materials also enable improved performance of today’s Lithium-ion batteries. We have been able to develop highly efficient mechanical Silicon Metal reduction to create ideal nanoparticles for intended applications. Further treatment in specialised coating processes create the unique material qualities that our customers demand.
Hybrid Anode
