NANTGPOWER | Silicon Batteries Without Compromise.

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⟝ Silicon-Dominant Cell Platform

Silicon Batteries Without

Compromise.

Fast-charging. High-power. High-energy. Long life. One silicon platform — across cylindrical and pouch formats — built for real performance.

SiXXUS · 21700

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Request Samples

CHEMISTRY NMC + Si-Dominant

FORMATS 21700 · Pouch

FAST CHARGE 10–80% / 8.5 min

CYCLE LIFE 1000+ @ 100% DoD

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⟝ Silicon-Dominant Cell Platform

Silicon Batteries Without

Compromise.

Fast-charging. High-power. High-energy. Long life. One silicon platform — across cylindrical and pouch formats — built for real performance.

SiXXUS · 21700

Explore the Cells

Request Samples

CHEMISTRY NMC + Si-Dominant

FORMATS 21700 · Pouch

FAST CHARGE 10–80% / 8.5 min

CYCLE LIFE 1000+ @ 100% DoD

HOME-Four advantages. One cell platform.

⟝ Why SiXXUS Is Different

Four advantages. One cell platform.

No trade-off between energy, power, charge speed, and durability. The SiXXUS platform delivers all four in a standard 21700 form factor.

Explore the Cells

Request Samples

Ultra-Fast Charging

8.5min

10–80% in 8.5 minutes with 43–48A fast-charge capability.

High Power Output

5c

Up to 5C continuous discharge — the highest power of any silicon 21700.

Long Cycle Life

1000+

Over 1000 cycles at 100% depth of discharge.

High Energy Density

289Wh/kg

Up to 289 Wh/kg and 841 Wh/L in cylindrical format.

HOME-Four advantages. One cell platform.

⟝ Why SiXXUS Is Different

Four advantages. One cell platform.

No trade-off between energy, power, charge speed, and durability. The SiXXUS platform delivers all four in a standard 21700 form factor.

Explore the Cells

Request Samples

Ultra-Fast Charging

8.5min

10–80% in 8.5 minutes with 43–48A fast-charge capability.

SiXXUS · 21700 Cylindrical

High-power silicon 21700 cells

Two cylindrical variants engineered for aerospace, defense, UAV, and high-power mobility applications.

High Power Output

5c

Up to 5C continuous discharge — the highest power of any silicon 21700.

Long Cycle Life

1000+

Over 1000 cycles at 100% depth of discharge.

High Energy Density

289Wh/kg

Up to 289 Wh/kg and 841 Wh/L in cylindrical format.

The NantG Product Family

One platform.
Every form factor.

SiXXUS · 21700 Cylindrical

High-power silicon 21700 cells

Two cylindrical variants engineered for aerospace, defense, UAV, and high-power mobility applications.

The NantG Product Family

One platform.
Every form factor.

SiXXUS · 21700 Cylindrical

High-power silicon 21700 cells

Two cylindrical variants engineered for aerospace, defense, UAV, and high-power mobility applications.

Balanced Silicon Performance

SiXXUS 1.0 — 5.4 Ah

Balanced Silicon Performance

A balanced high-performance 21700 delivering fast charge, high power, and long cycle life in a drop-in cell.

Capacity (typ / min)

Specific Energy

Energy Density

Continuous Discharge

Max Charge

Fast Charge (10–80%)

Cycle Life (100% DoD)

Dimensions

5.4 Ah / 5.3 Ah

270 Wh/kg

760 Wh/L

27 A (5C)

43.2 A

8.5 min

1000+ cycles

21.4 × 70.4 mm

SiXXUS · 21700

Balanced Silicon Performance

SiXXUS 1.0 — 5.4 Ah

Balanced Silicon Performance

A balanced high-performance 21700 delivering fast charge, high power, and long cycle life in a drop-in cell.

Capacity (typ / min)

Specific Energy

Energy Density

Continuous Discharge

Max Charge

Fast Charge (10–80%)

Cycle Life (100% DoD)

Dimensions

5.4 Ah / 5.3 Ah

270 Wh/kg

760 Wh/L

27 A (5C)

43.2 A

8.5 min

1000+ cycles

21.4 × 70.4 mm

SiXXUS · 21700

High-Energy Fast-Charging Silicon

SiXXUS 2.0 · 21700

SiXXUS 2.0 — 6.0 Ah

High-Energy Fast-Charging Silicon

A next-generation high-energy 21700 with the same high-power and fast-charge advantages — purpose-built for the most demanding autonomous platforms.

Capacity (typ / min)

Specific Energy

Energy Density

Continuous Discharge

Max Charge

Fast Charge (10–80%)

Cycle Life (100% DoD)

Dimensions

6.0 Ah / 5.8 Ah

270 Wh/kg

859 Wh/L

30 A (5C)

48 A

8.5 min

1000+ cycles

21.4 × 70.4 mm

High-Energy Fast-Charging Silicon

SiXXUS 2.0 — 6.0 Ah

High-Energy Fast-Charging Silicon

A balanced high-performance 21700 delivering fast charge, high power, and long cycle life in a drop-in cell.

A next-generation high-energy 21700 with the same high-power and fast-charge advantages — purpose-built for the most demanding autonomous platforms.

Capacity (typ / min)

Specific Energy

Energy Density

Continuous Discharge

Max Charge

Fast Charge (10–80%)

Cycle Life (100% DoD)

Dimensions

6.0 Ah / 5.8 Ah

270 Wh/kg

859 Wh/L

27 A (5C)

30 A (5C)

48 A

8.5 min

1000+ cycles

21.4 × 70.4 mm

SiXXUS 2.0 · 21700

Olympic · Pouch Cells

High-density silicon pouch cells

Flexible-format silicon-dominant cells from 2 to 61 Ah, engineered for robotics, mobility, and grid-scale applications.

Olympic Flex · Pouch

Olympic Flex — 2 to 20 Ah

High-Density Flexible Pouch

A configurable small-format pouch cell platform delivering exceptional energy density with custom dimensions for embedded and bespoke applications.

Capacity (typ / min)

Specific Energy

Energy Density

Continuous Discharge

Max Charge

Fast Charge (10–80%)

Cycle Life (100% DoD)

Dimensions

6.0 Ah / 5.8 Ah

270 Wh/kg

859 Wh/L

30 A (5C)

48 A

8.5 min

1000+ cycles

21.4 × 70.4 mm

Olympic · Pouch Cells

High-density silicon pouch cells

Flexible-format silicon-dominant cells from 2 to 61 Ah, engineered for robotics, mobility, and grid-scale applications.

Olympic Flex · Pouch

Olympic Flex — 2 to 20 Ah

High-Density Flexible Pouch

A configurable small-format pouch cell platform delivering exceptional energy density with custom dimensions for embedded and bespoke applications.

Capacity (typ / min)

Specific Energy

Energy Density

Continuous Discharge

Max Charge

Fast Charge (10–80%)

Cycle Life (100% DoD)

Dimensions

6.0 Ah / 5.8 Ah

270 Wh/kg

859 Wh/L

30 A (5C)

48 A

8.5 min

1000+ cycles

21.4 × 70.4 mm

Large-Format High-Density

Olympic XL — 59 / 61 Ah

Large-Format High-Density

A large-format silicon-composite pouch cell delivering industry-leading energy density for heavy-duty mobility and grid storage.

Capacity (typ / min)

Specific Energy

Energy Density

Cathode

Anode

Cycle Life (100% DoD)

Dimensions

59 / 61 Ah

up to 373 Wh/kg

up to 864 Wh/L

NCM

Si

1000+ – 2000+ cycles

145 × 140 mm

Olympic XL · Pouch

Large-Format High-Density

Olympic XL · Pouch

Olympic XL — 59 / 61 Ah

Large-Format High-Density

A large-format silicon-composite pouch cell delivering industry-leading energy density for heavy-duty mobility and grid storage.

Capacity (typ / min)

Specific Energy

Energy Density

Cathode

Anode

Cycle Life (100% DoD)

Dimensions

59 / 61 Ah

up to 373 Wh/kg

up to 864 Wh/L

NCM

Si

1000+ – 2000+ cycles

145 × 140 mm

Silicon battery technology that actually lasts.

⟝ Technology

Silicon battery technology that actually lasts.

Silicon offers enormous theoretical energy density but historically suffers from swelling, SEI breakdown, heat generation, and rapid capacity fade. NantG’s platform solves these challenges with advanced materials science, multi-physics modeling, and an IP-protected chemistry architecture.

01 / Foundational IP

Silicon-Dominant Anode Platform

A modern silicon system built on a deep patent foundation covering SEI stabilization, Si/C composite structures, swelling mitigation, high-rate charge and discharge, high-loading electrodes, formation chemistry, and silicon-optimized electrolytes.

02 / High-Rate Architecture

Multi-Tab / Tabless Design

A proprietary high-rate architecture that reduces internal resistance, improves thermal behavior, distributes current uniformly, and unlocks extreme charging and discharging rates.

03 / Electrode Engineering

AI-Driven Optimization

Data-guided optimization of loading, porosity, and formation enables low-tortuosity, high-loading electrodes with engineered porosity for fast lithium transport, high power, and stable fast-charging behavior.

04 / Fast-Charge Engineering

43–48 A Without Compromise

Our cells support 43–48A charge rates without compromising cycle life thanks to a stabilized SEI, elastic Si anode, optimized formation processes, silicon-specific electrolytes, and high-rate cathode pairing.

05 / Energy Density

Up to 373 Wh/kg

From 289 Wh/kg in our balanced 21700 cylindrical SiXXUS cells to up to 373 Wh/kg in our large-format Olympic pouch cells — class-leading energy density across every form factor.

06 / Stability

Thermal & Mechanical Resilience

Our Si anode architecture, reinforced SEI, and optimized electrode structure suppress swelling and deliver cycle life beyond 1000 cycles at 100% depth of discharge.

Silicon battery technology that actually lasts.

⟝ Technology

Silicon battery technology that actually lasts.

Silicon offers enormous theoretical energy density but historically suffers from swelling, SEI breakdown, heat generation, and rapid capacity fade. NantG’s platform solves these challenges with advanced materials science, multi-physics modeling, and an IP-protected chemistry architecture.

01 / Foundational IP

Silicon-Dominant Anode Platform

A modern silicon system built on a deep patent foundation covering SEI stabilization, Si/C composite structures, swelling mitigation, high-rate charge and discharge, high-loading electrodes, formation chemistry, and silicon-optimized electrolytes.

02 / High-Rate Architecture

Multi-Tab / Tabless Design

A proprietary high-rate architecture that reduces internal resistance, improves thermal behavior, distributes current uniformly, and unlocks extreme charging and discharging rates.

03 / Electrode Engineering

AI-Driven Optimization

Data-guided optimization of loading, porosity, and formation enables low-tortuosity, high-loading electrodes with engineered porosity for fast lithium transport, high power, and stable fast-charging behavior.

04 / Fast-Charge Engineering

43–48 A Without Compromise

Our cells support 43–48A charge rates without compromising cycle life thanks to a stabilized SEI, elastic Si anode, optimized formation processes, silicon-specific electrolytes, and high-rate cathode pairing.

05 / Energy Density

Up to 373 Wh/kg

From 289 Wh/kg in our balanced 21700 cylindrical SiXXUS cells to up to 373 Wh/kg in our large-format Olympic pouch cells — class-leading energy density across every form factor.

06 / Stability

Thermal & Mechanical Resilience

Our Si anode architecture, reinforced SEI, and optimized electrode structure suppress swelling and deliver cycle life beyond 1000 cycles at 100% depth of discharge.

applications-3

applications

Built for the world’s most
demanding power profiles.

Designed for missions where energy, power, and durability all have to be true at once.

01 / Aerospace

Aerospace

Longer range, higher payload, and fast turnaround enabled by high energy, high power, and ultra-fast charging.

02 / Defense

Defense

Ruggedized performance with secure supply chain, high-power bursts, and long cycle life for mission-critical systems.

03 / UAV

UAV

Extended missions, higher payloads, and faster recharge cycles across professional and tactical platforms.

04 / Robotics

Robotics

Sustained high-power draw with stable thermal behavior and cycle durability for humanoid and AMR platforms.

05 / Performance EV

Performance EV

Fast-charge capability paired with high energy and low impedance for the next generation of high-performance vehicles.

06 / Premium Mobility

Premium Mobility

A next-generation power platform for premium product ecosystems requiring uncompromised performance.

applications-3

applications

Built for the world’s most demanding power profiles.

Designed for missions where energy, power, and durability all have to be true at once.

01 / Aerospace

Aerospace

Longer range, higher payload, and fast turnaround enabled by high energy, high power, and ultra-fast charging.

02 / Defense

Defense

Ruggedized performance with secure supply chain, high-power bursts, and long cycle life for mission-critical systems.

03 / UAV

UAV

Extended missions, higher payloads, and faster recharge cycles across professional and tactical platforms.

04 / Robotics

Robotics

Sustained high-power draw with stable thermal behavior and cycle durability for humanoid and AMR platforms.

05 / Performance EV

Performance EV

Fast-charge capability paired with high energy and low impedance for the next generation of high-performance vehicles.

06 / Premium Mobility

Premium Mobility

A next-generation power platform for premium product ecosystems requiring uncompromised performance.

COMPANY-stick

⟝ Our Company

Powering the Age of Autonomy.

Our Company

Powering the Age of Autonomy.

Our mission

Deliver the world’s most balanced, high-performance silicon battery technology. A team of battery scientists, materials engineers, and manufacturing experts building the next generation of silicon-dominant battery systems.