Lithium
Block™
1S×P modules in both energy and power configurations. Stackable, sensed, and air-cooled building blocks.
Key Features
Wire-bonded 18650 modules with standardized 1S×P geometry and integration-ready interfaces.
Need installation or handling guidance? Read the User Manual
Ultrasonic Wire-Bond Interconnect
Cell-level fusing on both anode/cathode for low resistance and fault isolation.
1S×P, Stackable Form Factor
Standard 25.5 mm bus-bar spacing for dense, scalable arrays.
Integrated Sensing
Conformally coated PCB with galvanically isolated 10kΩ NTC thermistors (β=3380 K, ±0.5%).
Integration-Ready Interfaces
M6 × 1 threaded inserts (5.5 Nm, Loctite 243) and Molex 430450812 (mate 43025-0800).
Available Configurations
Standard configurations from 5P to 10P. Custom parallel arrays available for specific requirements.
5P Configuration
5 cells in parallel
6P Configuration
6 cells in parallel
7P Configuration
7 cells in parallel
8P Configuration
8 cells in parallel
9P Configuration
9 cells in parallel
Need these built into a custom battery system? We can help.
Request Custom ConfigurationLithium Block™ Space Allocator
Configure module layout and see real-time enclosure dimensions for your battery pack. Drag to rotate — all dimensions include 10 mm wall clearance.
Module Type
Parallel Count
88 Wh · 157 mm tall
Layout
Options
Electrical Topology
12S7P · 84 cells
Legend
Drag to rotate · Scroll to zoom · Reset icon to restore view · Enclosure includes 10 mm wall clearance on all faces
See It In Action
Lithium Block™ manufacturing and module handling
How Lithium Block is Made
Why ultrasonic wire-bonding, how it differs from tab/resistance welding, and what it unlocks in pack design.
For full installation and handling procedures, see the User Manual.
Precision Ultrasonic Bonding
Our ultrasonic wire-bond process creates low-impedance connections on both anode and cathode. It enables compact packaging and acts as cell-level protection for localized fault isolation.
- Ultrasonic frequency: 60kHz for optimal energy transfer
- Controlled bonding force ensures consistent connection quality
- Real-time monitoring validates each bond formation
Metallurgical Bond Formation
Each wire bond creates a true metallurgical connection through atomic-level diffusion between the aluminum wire and cell terminal. This process eliminates the need for solder or mechanical fasteners, resulting in superior electrical and thermal performance.
- Contact resistance: <50 microohms per bond
- Bond strength exceeds 15N pull force specification
- Temperature cycling validated: -40°C to +85°C
Production-Ready Module Assembly
The completed lithium block module features multiple parallel wire bonds that distribute current evenly across all cells. Our manufacturing fixture ensures precise positioning and consistent bond placement, enabling scalable production while maintaining the highest quality standards.
- Parallel bond architecture maximizes current capacity
- Automated quality inspection validates every connection
- Production traceability ensures consistent performance
NTC (β=3380 K ±0.5%)
Integrated, isolated temperature sensing
Bus-bar spacing
Standard module pitch
M6×1 terminal torque
Use Loctite 243
HV Terminal Fastener Guidance
The HV bus bar terminal is a female self-clinching threaded insert (PennEngineering F-M6-3, 300 Series SS, M6 × 1, through-threaded, 3.05 mm usable engagement). Bus bar hole spacing: 25.5 mm center-to-center.
With bus bar integration kit (BUS-LB)
- Bus bar: EN-plated aluminum, 1/8 in (3.175 mm)
- Fasteners supplied. Use as provided.
- Bolt: M6 × 1 × 14 mm, class 8.8, zinc-plated steel
- Washer: M6 spring lock washer, zinc-plated
- Torque: 5.5 Nm with Loctite 243 (stick, not liquid)
- No sizing calculation required.
Modules purchased without BUS-LB
- Recommended: M6 × 1.0 × 14 mm, class 8.8, zinc-plated steel hex head screw with M6 spring lock washer (6.2 mm ID, 14.3 mm OD). Suits bus bar or lug stacks up to ~9 mm.
- For other stack thicknesses:
Minimum length = stack thickness + washer thickness + 3.05 mm
Maximum length = stack thickness + 15 mm
Recommended ceiling: 18 mm - Engagement is fixed at 3.05 mm by the insert regardless of bolt length. ~15 mm clearance behind the insert means erring long is acceptable within the ceiling.
- Stainless fasteners are not recommended.
- Torque: 5.5 Nm with Loctite 243 (stick, not liquid)
Copy-ready hardware callout for self-integrators:
M6 spring lock washer, zinc-plated, 6.2 mm ID, 14.3 mm OD
Loctite 243, stick form
Applications
Lithium Block™ modules serve as building blocks for larger battery systems across diverse industries and applications.
Rapid Pack Prototyping
Fast path from concept to first article using standardized, stackable modules.
High-Current Sub-Modules (up to 350 A)
Power-optimized P28A variants for peak discharge and dynamic duty cycles. Standard (Al collector): up to 210 A. Performance (Cu collector): up to 350 A.
Segmented HV Accumulators (≤ 500 VDC)
Design compliant, serviceable segments with proper creepage/clearance and protection.
Downloads & Documentation
Complete technical documentation, CAD files, and integration guides for the Lithium Block™ platform.
Technical Datasheet
Complete specifications, performance data, and integration guidelines.
CAD Library
STEP models and technical drawings for all configurations.
LV Connector Pinout
Main Fuse Estimator
Calculate a recommended main fuse rating for your Lithium Block pack configuration.
Main Fuse Estimator
Rule: main fuse < 120% of pack current ratingLithium Block™ Bracketing System
Engineered mounting solutions that transform individual modules into production-ready battery systems with professional fit and finish
Professional Integration Made Simple
No custom fabrication required. Our bracketing system delivers OEM-grade assembly quality with straightforward installation.
Engineered for Excellence
Professional Installation
Clean, repeatable assembly with pre-engineered mounting points and alignment features for a factory-quality result every time.
Consistent Stack Tolerance
Precision-machined brackets maintain tight dimensional control across the entire module stack, ensuring proper electrical contact and thermal performance.
Integrated Cooling Manifold
Built-in airflow channels and fan mounting provisions enable forced-air cooling for high-power applications without custom fabrication.
Structural Protection
Robust aluminum construction provides impact resistance and strain relief for interconnects during handling and operation.
Optimized Thermal Path
Direct contact mounting and integrated heat dissipation features maximize thermal performance under continuous high-current operation.
System Capabilities
Reduces Assembly Time
Pre-engineered mounting solutions eliminate design iteration and custom fabrication, allowing you to go from modules to tested battery system in hours instead of weeks.
Professional Appearance
Clean lines, precision fits, and integrated cable management create a finished product that looks factory-assembled, which is critical for demonstrations, testing, and production systems.
Get Bracketing System Specifications
Download CAD models for your configuration or contact our engineering team for custom bracket solutions tailored to your application.
Lithium Block in Your Application
Lithium Block modules are the core energy storage element in every MonoLith™ system. Explore application-specific guidance for your domain.
Ready to Build with Lithium Block™?
Contact our engineering team to discuss your requirements and receive detailed specifications for your application.