Pouch High-Power Cell
SES H10B
Pouch cell delivering 11.4 Ah capacity, 379 Wh/kg energy density and 68.4 A maximum discharge rate.
Overview
The SES H10B is a high-power Li-ion pouch cell designed for applications that demand sustained high current. Released in 2026 and with the manufacturer based in United States, this pouch cell delivers 11.4 Ah capacity and 39 Wh of energy at a nominal voltage of 3.4 V, with a maximum continuous discharge capability of 68.4 A, making it well suited to high-power systems. A gravimetric energy density of 379 Wh/kg puts it at the upper end of the library. The silicon-bearing anode contributes to that energy density.
Key Features
High discharge rate: 68.4 A continuous (6.0 C)
Energy density: 379 Wh/kg
Power density: 2258 W/kg
Capacity: 11.4 Ah nominal capacity
Applications: e-mobility, aviation, drones
Technical Specifications from the Manufacturer
Parameter
Manufacturer
SES
Model
H10B
Type
Li-ion
Form factor
Pouch
Country of origin
United States
Release year
2026
Nominal voltage
3.4
Energy capacity [Wh]
39
Capacity [Ah]
11.4
Gravimetric energy density [Wh/kg]
379
Gravimetric power density [W/kg]
2258
Max continuous discharge [A]
68.4
Volume [cm³]
47.6
Mass [g]
103
Positive electrode (cathode)
Ni-based
Negative electrode (anode)
Graphite/Si additive
Value
Applications & Use‑Cases
The SES H10B is well suited to the following applications due to its pouch format and high power performance.
E-Mobility: Requires balanced energy and power density for range and acceleration, high cycle life for daily use, and robust calendar life to ensure long-term reliability.
Aviation: Requires high specific energy for extended flight duration, high power-to-weight ratio for climb performance, and reliable operation across wide temperature ranges at altitude.
Drones: Demands high gravimetric power density for thrust and payload capacity, rapid current response for flight control, and stable voltage delivery across dynamic flight profiles.
General Applications: Suitable for applications requiring reliable lithium-ion performance with proven cycle life, consistent capacity delivery, and operational safety across diverse use cases.
.jpg)
Performance & Model Data
Below are modelled performance metrics for the SES H10B across key indicators, including constant current behaviour, rate capability, temperature dependence, and available power under representative drive cycle conditions.
Constant Current Voltage
Access SES H10B constant-current discharge curves in Voltt to size your pack against the voltage window your system actually needs. (Chart shown is illustrative, not H10B data.)
Constant Current Temperature
Access SES H10B thermal discharge data in Voltt to specify cooling and cell spacing before you commit to a pack layout. (Chart shown is illustrative, not H10B data.)
Pulse Power Behaviour
Access SES H10B pulse power maps in Voltt to set peak current limits and parallel count for your worst-case load. (Chart shown is illustrative, not H10B data.)
Dynamic Profile Response
Access SES H10B mission profile simulations in Voltt to prove the pack holds up over a real duty cycle before you build it. (Chart shown is illustrative, not H10B data.)
.png)
Case Studies
See how we helped McMurtry reduce cell evaluation time by 70% through data driven testing and modelling.
Motorsports
McMurtry Automotive: Faster cell evaluation
McMurtry Automotive used The Voltt and validated cell models to evaluate the transition from the Molicel P45B to P50B during early pack concept development.
Side by side modelling enabled rapid comparison of electrical and thermal behaviour, avoiding lengthy physical test campaigns. This approach reduced cell evaluation time by seven months, allowing the team to lock in cell selection and pack assumptions earlier while lowering technical risk and accelerating vehicle development.
Comparison with Related Cells
Compare the SES H10B with similar Pouch cells offering comparable capacity and performance characteristics.
Model
Capacity
Max Discharge
Typical Use
Access Cell Data
Manufacturer Background
SES AI
SES AI is an American developer of lithium-metal and lithium-ion cells
SES AI was founded in 2012 as SolidEnergy Systems and is headquartered in Boston, Massachusetts, with operations in Singapore, Shanghai and South Korea. The company develops both lithium-metal and lithium-ion pouch cells, pairing them with electrolyte formulations identified through its own AI-driven materials discovery platform. Its cells serve uncrewed aerial systems, electric aviation and automotive development programmes where energy density is the binding constraint, and the company also licenses its materials discovery software to other manufacturers. SES AI is publicly listed and works with automotive partners on joint development. It sits among the small group of developers moving lithium metal from laboratory demonstration toward qualified production.
Frequently Asked Questions
What is the capacity and voltage of the SES H10B?
The SES H10B has a nominal capacity of 11.4 Ah and a nominal voltage of 3.4 V, providing 39 Wh of energy per cell.
What is the maximum continuous discharge capability of the SES H10B?
The SES H10B supports continuous discharge rates up to 68.4 A, delivering a power density of 2258 W/kg.
How much does the SES H10B weigh and what is its volume?
The cell has a mass of 103 g and a volume of 47.6 cm³.
In which industries is the SES H10B commonly used?
The SES H10B is used across e-mobility, aviation, drones, applications that demand sustained high current.
What is The Voltt and how does it accelerate cell evaluation?
The Voltt holds 500+ verified commercial cell datasheets alongside validated simulation models built from cells characterised in About:Energy's own lab. Engineers screen candidates against their real duty cycle before buying hardware, which cut cell evaluation time by seven months for McMurtry Automotive and reduces evaluation cycles by up to 70%.
What data can be extracted using The Voltt?
Constant-current discharge curves at multiple C-rates, DC internal resistance against state of charge and temperature, pulse power maps, thermal response, and full mission-profile simulation with user-defined pack configurations. Models are available as equivalent circuit, thermal, physics-based and degradation formats, exportable for use in MATLAB, Simulink and Python workflows.
