POSCO Future M secures mass‑production tech for silicon anodes
- Material stores more than four times the energy of graphite-based anodes.
- At a blending ratio of 20% or more the material retained over 80% of initial capacity after 1,000 cycles.
- POSCO Future M targets mass production and supply in 2028.
- Proprietary silicon nano-sizing and carbon composite technologies substantially reduce volume expansion.
Technology breakthrough
POSCO Future M says it has secured mass-production technology for silicon anode materials by applying proprietary silicon nano-sizing and carbon composite technologies to substantially reduce volume expansion—the primary obstacle to commercialization.
Performance data
The company’s silicon anode material can store more than four times the energy of graphite-based anodes. In tests with a blending ratio of 20% or more, the material retained over 80% of its initial capacity after 1,000 charge/discharge cycles, exceeding the single-digit blending ratios typical of conventional batteries.
Production timeline and target markets
POSCO Future M is targeting mass production and supply in 2028, taking overall market demand and evolving conditions into account. Demand is expected to accelerate in premium EVs that need extended range and faster charging, with potential expansion into robotics, humanoid robots and urban air mobility (UAM).
Validation and next steps
The company secured mass-production technology through product testing and quality verification with key domestic and international customers and is collaborating with Factorial, a US solid-state battery specialist, across cathode and silicon-anode segments. POSCO Future M plans process and productivity improvements and to establish a stable supply infrastructure to meet growing demand.
Source: POSCO
