NCM811 Silicon–Carbon Anode Pouch Dry Pouch Cell(Multiple Specs)

Name: NCM811 / Silicon-Carbon Anode Pouch Dry Pouch Cell (Multiple Specs)

Cell Type: NCM811-SiC Pouch Dry Cell (Two Anode Grades)

Product Code: XN-NCM811-SiC

Description:

NCM811 / Silicon-Carbon Anode Pouch Dry Pouch Cell pairs high-nickel NCM811 (Ni80) cathode with silicon-carbon composite anode in a fully assembled but unfilled (dry) pouch format. As a result, this configuration delivers high energy density along with the cycle stability advantages of optimized silicon-carbon chemistry. Xnergy supplies two anode capacity grades — 450 mAh/g for maximum cycle stability (94.5% retention at 750+ cycles) and 600 mAh/g for higher energy density (87% retention at 800+ cycles) — letting customers choose the optimal trade-off for their research targets. Furthermore, the dry (unfilled) pouch format allows customers to inject their own electrolyte formulations for advanced battery R&D.

Application:

This dry pouch cell serves as a research platform for high-energy-density lithium-ion battery development, including electrolyte formulation studies (the cell ships unfilled, allowing customers to inject their own electrolyte), high-nickel cathode performance evaluation, silicon-carbon anode degradation studies, and full-cell prototyping for next-generation EV and consumer electronics applications. Furthermore, the dual-grade option enables direct comparison studies between cycle-stability-optimized (450 mAh/g) and energy-density-optimized (600 mAh/g) silicon-carbon chemistries.

Cell Specifications (1 Ah Standard Grade — Common for Both Anode Variants):

Cathode Specifications (NCM811 — Common for Both Variants):

Anode Specifications — Two Variants:

Values measured by Xnergy. Typical values for reference; not guaranteed unless otherwise specified.

Available Capacity Grades:

Cycle Life Performance — SiC450 (Long-Life Grade):

SiC450 grade cycle performance. Capacity retention 94.5% at 750+ cycles (left). Discharge capacity declines from ~1030 mAh to ~970 mAh over 750 cycles (right). Optimized for applications requiring long cycle life.

Cycle Life Performance — SiC600 (High-Energy Grade):

SiC600 grade cycle performance. Capacity retention 87% at 800+ cycles (left). Discharge capacity declines from ~1015 mAh to ~880 mAh over 800 cycles (right). Optimized for applications requiring higher energy density.

Characteristics:

Two anode grades for application-driven trade-offs

SiC450 (450 mAh/g) prioritizes cycle life with industry-leading 94.5% retention at 750+ cycles. SiC600 (600 mAh/g) prioritizes energy density with 33% higher anode capacity, while maintaining 87% retention at 800+ cycles. As a result, customers can directly compare performance trade-offs between the two grades on the same NCM811 cathode platform.

Industry-leading cycle life for silicon-carbon chemistry

Both grades exceed 750 cycles with strong capacity retention — a remarkable achievement for silicon-carbon anodes, which historically suffer from rapid degradation due to silicon volume expansion. Therefore, customers receive a research platform with both high energy density and proven cycling stability.

Validated NCM811 / Si-C electrochemistry

NCM811 cathode (190 mAh/g, 97% active material) paired with optimized silicon-carbon anode delivers extensively characterized full-cell performance. Consequently, this configuration is widely used as an industry benchmark for high-energy lithium-ion battery research.

Dry (unfilled) pouch design for electrolyte studies

The cell ships fully assembled but without electrolyte. Therefore, customers can inject their own electrolyte formulations to study electrolyte effects on silicon-carbon anode degradation, SEI formation, and high-Ni cathode interface — critical capabilities for advanced lithium-ion battery R&D.

Multiple capacity grades + custom specifications

Standard grades cover 1 Ah / 2 Ah / 5 Ah, with both SiC450 and SiC600 anode options. Furthermore, custom anode grades, alternative separators, and electrode dimensions are available on request to match specific research requirements.

Recommended Activation Protocol:

1. Inject electrolyte at 3 g/Ah ratio. 2. Vacuum-seal the pouch under inert atmosphere. 3. Aging: hold at 45 °C for 24 h. 4. Pre-formation rest: 12 h. 5. Formation: charge at 0.1C constant current to 4.2 V. 6. Rest 10 minutes. 7. Discharge at 0.1C constant current to 2.5 V (1 cycle). 8. Final aging: hold at 45 °C for 24 h before subsequent cycling tests.

Packaging & Storage:

Cells ship vacuum-sealed under inert atmosphere in moisture-barrier packaging. Therefore, customers should store sealed in a cool, dry environment, protected from moisture. Open packaging in a dry-room or glovebox environment immediately before electrolyte filling.

Safety:

For research and industrial use only. Activated lithium-ion cells contain flammable electrolyte and high-energy electrode materials. Wear PPE during cell handling and electrolyte filling. Never short-circuit, overcharge, overdischarge, puncture, or expose cells to high temperatures (> 60 °C). Refer to SDS for complete safety information.

Note: Values listed above are typical and for reference only. Performance may vary depending on electrolyte choice, formation protocol, cycling conditions, and test environment. See also other dry pouch cells in our catalog: NCM811 / Lithium Metal, NCM90 / Silicon-Carbon Anode, NCM90 / Lithium Metal, NCM622 / Artificial Graphite, NCM622 / Lithium Metal, NCM613 / Artificial Graphite, NCM523 / Lithium Metal, LCO / Artificial Graphite, LCO / Lithium Metal, LFP / Artificial Graphite, LFP / Lithium Metal, LFP Anode-Free, and LMFP / Artificial Graphite. Browse the full Dry Pouch Cell category for all configurations.