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Peak Nano & E&P Technologies Partnership

Engineered to Scale, Qualified for Deployment

As fusion scales toward repetitive operation, reliable pulsed power becomes mission-critical. Capacitors sit at the center of that challenge.

Peak Nano and E&P Technologies have built a new model for pulsed power innovation, pairing advanced dielectric materials with precision manufacturing.

E&P’s next-generation high-energy-density capacitors, powered by Peak Nano’s NanoPlex™ HDC dielectric film platform, accelerate development and strengthen the domestic industrial base for high-performance energy systems.

Peak Nano × Advanced Conversion Partnership

Building the DC Link 800V+ SiC Inverters Demand

Peak Nano and Advanced Conversion are partnering to co-develop next-generation DC-link capacitor solutions for high-voltage e-mobility. These capacitors combine Peak’s NanoPlex™ LDF film with Advanced Conversion’s Power Ring integration platform to close the performance gap that legacy BOPP-based designs can no longer bridge.

Contact Us for Early Access

Our Partnership

The shift to 800V+ power architectures and Silicon Carbide (SiC) switching has rewritten the rules for every component in the inverter… especially the DC link.

SiC MOSFETs demand lower inductance, higher operating temperatures, faster switching frequencies, and greater voltage endurance than BOPP-based capacitors can provide. The workarounds (derating, oversizing, and added cooling) are expensive and weight-restrictive. They undermine the efficiency gains SiC was supposed to deliver.

Peak Nano and Advanced Conversion are partnering to solve that problem from the ground up, pairing:

  • Peak’s NanoPlex LDF: The world's most thermally capable low-loss capacitor film for high-voltage power electronics

  • Advanced Conversion's patented Power Ring Platform: The industry's lowest-inductance DC-link integration architecture

Together, we’re delivering a DC-link solution designed specifically for 800V SiC inverters.

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About Advanced Conversion

Advanced Power Conversion Solutions Inc. (Advanced Conversion) is a wholly owned subsidiary of Electro Technik Industries Inc. (ETI), headquartered in Clearwater, Florida. Advanced Conversion designs and manufactures advanced DC-link integration solutions for high-voltage power electronics, with four facilities manufacturing leading-edge capacitor solutions across the U.S.

"SiC has fundamentally changed what the DC link must deliver, and the industry has been working around legacy polypropylene limitations for too long. Engineers designing 800V+ inverter systems shouldn't have to derate, oversize, or add cooling just so their capacitors can keep up… Partnering with Peak Nano gives us the film technology to match the ambition of our Power Ring platform. Together, we're delivering a DC-link purpose-built for 800V SiC inverters and geometrically aligned to integrate directly with motor housings.”

Edward Sawyer, CEO, Advanced Power Conversion Solutions

Why Advanced Conversion Selected NanoPlex LDF

Advanced Conversion selected Peak Nano's NanoPlex LDF as the film foundation for its next-generation Power Ring DC-link solutions targeting e-mobility, electrified aviation, and DC fast-charging infrastructure.

NanoPlex LDF: The Film Built for 800V+ SiC

NanoPlex LDF is engineered using advanced nanolayer polymer architecture to achieve thermal stability and voltage endurance that conventional single-polymer films cannot reach.

NanoPlex LDF is a drop-in replacement for polyester-based films, such as biaxially oriented polypropylene (BOPP), in existing winding and fabrication recipes.

LDF Performance vs. Traditional BOPP:

  • Maintains 95% of room-temperature breakdown strength at 135°C
  • 25% higher current handling at the same voltage and temperature as BOPP
  • No derating required up to 135°C, enabling capacitors to sit directly adjacent to hot SiC modules without a thermal buffer
  • Engineered and manufactured domestically

Commitment to Life Testing

Peak Nano is actively engaged in life testing of NanoPlex LDF — a critical validation step that has historically been a gap in the incumbent polyester film supply chain. Life testing under real-world voltage, temperature, and time conditions is not a trivial undertaking, but it is essential for film dielectrics to achieve the reliability levels demanded by 800V+ SiC-based power electronics. The absence of this testing has been a meaningful limitation holding back conventional films from broader adoption in high-performance applications. 

"Peak Nano's willingness and ability to pursue life testing represents a significant step forward — and a key differentiator from prior generations of dielectric film.”

Edward Sawyer, CEO, Advanced Power Conversion Solutions

Turning Film Performance Into a Complete DC-Link System

Advanced Conversion's Power Ring architecture translates NanoPlex LDF's material capabilities into a fully integrated, optimized DC-link solution.

The Power Ring’s annular winding geometry achieves ultra-low commutation loop inductance (under 5nH) while maximizing thermal extraction from the capacitor. A geometric ideal for motor housing, the Power Ring is configurable for flat inverter packaging or ring shapes that mount directly onto motor ends, making use of volumetric space conventional designs can’t access.

Together, this combination enables:

  • Up to 99% inverter efficiency with SiC controls
  • Up to 10× faster switching frequencies (reaching 200kHz)
  • 2× better voltage support for 800V platforms
  • Superior thermal performance up to 135°C
  • Reduced part counts, sizes, and cooling demands
  • DC charging in minutes, not hours

Integrated Development Pathway

1

Pre-Study & Application Review

Application engineers review your system parameters (voltage class, switching frequency, thermal environment, packaging constraints) and deliver a custom specification within 4–8 weeks. Outputs include CAD, thermal models, and reliability predictions, giving your team the data needed to evaluate fit before further commitment.

2

Evaluation & Prototyping

Collaborative evaluation of NanoPlex LDF-based capacitors by both Advanced Conversion and Peak Nano to corroborate performance metrics and de-risk device development against your application-specific duty profile. Standard test kits built around popular switch module packages, including Infineon HYBRIDPACK Drive, are available for immediate benchmarking.

3

Design Integration

Dedicated application engineering support throughout the full design-in process. Every step is documented with the traceability needed to move cleanly through qualification milestones and audit requirements. We provide a complete record to ensure nothing administrative stands between design sign-off and volume commitment.

4

Life Testing & Supply Chain Qualification

Pre-study thermal analysis maps your operating conditions to predicted film life. From there, Peak Nano and Advanced Conversion provide instrumented prototypes for in-system validation, giving customers the measured data needed to clear the supply chain and quality gates that stand between design integration and volume commitment.

5

Volume Production

U.S.-based winding, fabrication, and manufacturing, aligned with your timeline and delivery requirements. Production capacity is structured to scale with your program, from pilot builds to high-volume manufacturing. Supply chain continuity is built in from the start so that qualified components remain available as your program ramps.

Peak Nano × Advanced Conversion Capabilities

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NanoPlex LDF Capacitor Film

NanoPlex LDF is a nanolayered capacitor film engineered for the high-temperature, high-voltage demands of 800V+ SiC inverter systems. Its architecture delivers thermal stability and voltage endurance that BOPP cannot match, with no derating penalties. 

LDF vs. BOPP:

  • 95% breakdown strength retained at 135°C vs. significant derating above 85°C for BOPP.
  • 25% higher current handling at the same voltage and temperature.
  • Drop-in replacement for BOPP-C and PEN.
  • Domestically engineered and manufactured.
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Power Ring DC-Link Integration

The Power Ring is Advanced Conversion's patented DC-link integration platform, delivering ultra-low commutation loop inductance (<5nH) and superior thermal coupling for fast-switching SiC modules. The annular geometry enables compact, surface-mounted assemblies for flat inverter packaging and ring-form structures that fit directly onto motor housings. 
 

Serving:

  • EV and e-mobility OEMs
  • Tier 1 automotive suppliers
  • Electric commercial vehicle manufacturers
  • eVTOL and electrified aviation developers
  • DC fast-charging infrastructure providers.

A Secure Supply Chain for High-Voltage E-Mobility

This partnership delivers one of the few DC-link solutions for high-voltage e-mobility that leverages fully domestic, allied supply chains. NanoPlex LDF is engineered and manufactured in the United States, and Advanced Conversion's manufacturing is also U.S.-based.

Together, we support OEMs and Tier 1s working to de-risk their supply chains and align with onshoring priorities across the EV, power electronics, and defense sectors.

"NanoPlex LDF was built for exactly the environment that high-voltage SiC inverters create — high temperature, high frequency, high electrical stress, with no room for derating. Advanced Conversion's Power Ring architecture is the integration platform that can translate that film capability into a complete, optimized system. This partnership puts the right film and the right manufacturing platform together for the first time, and the products we are developing together will set a new benchmark for DC-link performance in e-mobility on land, sea, and air."

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Jim Welsh, CEO of Peak Nano

 

Frequently Asked Questions

Peak Nano and Advanced Conversion are partnering to develop next-generation DC-link capacitors using NanoPlex films for high-voltage SiC inverters. This collaboration combines Peak's NanoPlex films with Advanced Conversion's Power Ring DC-link integration platform to enable smaller, lighter, higher-performance EV inverters.

DC-link capacitors in 800V+ SiC inverters face extreme thermal stress, rapid charge-discharge cycles, and high ripple currents, causing conventional single-polymer films like BOPP to derate or fail prematurely.

NanoPlex LDF delivers 135°C thermal stability without derating and up to 5x capacitor lifetime compared to BOPP's 85°C limit. Its nanolayer architecture reduces cooling needs and enables compact capacitor designs for high-duty applications across the power grid, EVs, and fusion.

Power Ring is Advanced Conversion's modular inverter platform optimized for 800–900V SiC systems in EVs and industrial applications. It integrates high-density DC-link capacitors with advanced cooling and controls for superior efficiency and power density.

The partnership targets high-voltage e-mobility applications, with an initial focus on high-performance and commercial platforms including Formula E and performance automotive, electric buses and heavy trucks, off-highway and industrial vehicles, and electrified aviation. Our focus includes OEMs needing 800V+ architectures for faster charging and extended range.

Peak Nano and Advanced Conversion are developing joint products now, with initial releases slated for late 2026. Program managers and engineers are invited to contact Advanced Conversion or Peak Nano to discuss early access and evaluation opportunities.

Peak Nano's U.S.-engineered and manufactured films eliminate reliance on foreign-sourced BOPP, while Advanced Conversion's U.S. manufacturing scales domestic capacitor output. This helps to create a secure, resilient supply for critical EV and energy infrastructure.

  • EV traction is our primary focus right now, but it's not the only application where nanolayer dielectric architecture has something to offer. With the shift to 800V architecture for AI datacenters, DC-Link capacitors with the ability to withstand high temperatures and ripple currents will be needed. NanoPlex LDF is expected to fill that gap and also find utility in renewable energy applications and grid applications where high ambient temperatures can negatively impact device lifetime.

  • We have also commercialized a second film product called Nanoplex HDC, optimized for pulsed-power applications — a market with distinct requirements for energy density, voltage standoff, and discharge characteristics. Peak has ongoing work with multiple capacitor manufacturers to evaluate how this film interacts with advanced capacitor geometries to push breakdown voltage higher without sacrificing capacitance per unit volume, and results will be published when field testing is complete. If pulsed power is relevant to your program, we'd welcome a conversation.

Yes. Contact us for DC-link film evaluation kits or Films-as-a-Service (FaaS) pre-studies. We'll match NanoPlex LDF to your SiC inverter specs within weeks.

Let's Build What's Next

Is your team deploying 800V+ SiC technology across inverter systems, traction drives, DC fast charging, renewable energy, AI data centers, or electrified aviation?

Let's discuss your system needs and early access opportunities.