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Posco Future M targets EV battery upgrade with silicon
Posco Future M had secured mass production technology for silicon anode materials, a battery component that could extend EV range and cut charging times.
The company said its material kept more than 80% of its original capacity after 1,000 charge and discharge cycles in tests with silicon content above 20%.
Silicon anodes can store more than four times the energy of graphite but have been hard to commercialize because they expand during use and can damage batteries.
Posco Future M said it used silicon nanoprocessing and carbon composite technology to reduce that expansion.
The company plans to begin mass production and supply in 2028 depending on demand.
🔗 Source: The Korea Times
🧠 Food for thought
Implications, context, and why it matters.
This silicon advance fits into a broader anode plan
- Posco Future M is already growing its standard anode business to meet nearer-term battery demand, even with silicon anode production planned for 2028 1.
- The company is spending 357 billion won (US$236 million) on an artificial graphite anode plant in Vietnam. Commercial output is due in 2028, with capacity of up to 55,000 metric tons a year and room to expand as orders rise 2.
- Support comes from signed business, including a 1 trillion won (US$660 million) contract to supply anode materials to a global automaker from 2027 through 2032 1.
- That larger base in current materials gives POSCO Future M the scale and customer ties to roll out silicon anodes later 1.
Supply chain control strengthens Posco Future M’s pitch to customers
- Posco Future M says Posco Group has built supply chain reach across raw materials, battery materials, and recycling. It also cites resource bets such as graphite mines in Africa 3.
- That approach fits Western rules such as the US Inflation Reduction Act, a US law that encourages domestic and allied-country clean energy manufacturing. One example is its North American joint venture with GM, the US automaker General Motors 4.
- As Korea’s only producer of graphite-based anode materials, POSCO Future M stands as a domestic supply hub. It also sells cathode and anode active materials used in batteries 1.
- Progress on silicon and tighter control of sourcing make the company a stronger supplier for automakers shifting to EVs 2.
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