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Anode Active Material

SiOx / silicon-carbon composite anode material

SiOx and Si-C composites are used for higher-capacity lithium-ion anodes with more manageable expansion than pure silicon powders.

SiOx / Si-C

Product Details

SiOx / silicon-carbon composite anode material

Category
Anode Active Material
Availability
RFQ
Grade
Battery-grade SiOx or Si-C composite option
Documents
SDS / COA / TDS

Typical Specification

  • Si content and capacity grade by request
  • D50 commonly 5-10 um for composite powders
  • Initial efficiency and expansion grade-dependent
  • Binder compatibility to be confirmed

Specifications vary by grade and production lot. Confirm the applicable COA or TDS, sampling method, and acceptance limits before cell qualification.

Use Cases

  • SiOx and Si-C composites are used for higher-capacity lithium-ion anodes with more manageable expansion than pure silicon powders.
  • Requested materials can be quoted for R&D, pilot-scale qualification, or production-scale sourcing after grade, particle-size, documentation, and packaging requirements are confirmed.
  • Typical supporting documents may include SDS, COA, and TDS depending on supplier lot and requested specification.

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Technical Selection Guide

How should SiOx / silicon-carbon composite anode material be evaluated?

SiOx / silicon-carbon composite anode material is used to increase anode capacity beyond conventional graphite. Silicon-containing materials undergo substantial volume change, so particle architecture, carbon integration, binder selection, electrolyte additives, prelithiation, and electrode loading must be developed together.

Why developers evaluate it

  • High-energy silicon-anode development
  • FEC and multi-additive electrolyte screening
  • Expansion, impedance, and cycle-life studies

Development considerations

  • Control expansion and electrode mechanical integrity
  • Track first-cycle lithium loss and Coulombic efficiency
  • Qualify particle distribution and carbon architecture

How to compare it

Compare silicon, SiOx, and silicon-carbon grades at matched electrode design and silicon loading. Higher silicon content can raise capacity but usually increases expansion, irreversible loss, and electrolyte demand.

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