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Global energy production, storage and transport are both essential and environmentally impactful. New energy sources, managing and capturing the biproducts of energy expenditure, and repurposing of carbon dioxide are issues of national and global importance. Researchers at LLNL continue to broadly invent novel technologies that intersect at materials, mechanical, electrical, biological and chemical interfaces. Inventions in this portfolio range from bioreactors, to materials, to batteries, motors and new systems.

Portfolio News and Multimedia

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New technique converts excess renewable energy to natural gas

LLNL researchers have partnered with Los Angeles-based SoCalGas and Munich, Germany-based Electrochaea to develop an electrobioreactor to allow excess renewable electricity from wind and solar sources to be stored in chemical bonds as renewable natural gas.  Check out Electrochaea's press release: Electrochaea signs CRADA.

The work is funded with $1 million from the Technology Commercialization Fund of the DOE Industrial Efficiency and Decarbonization Office, a division of the Office of Energy Efficiency and Renewable Energy. Partners will provide $1 million in in-kind contributions or research funds.  

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Hydrogen storage demonstrated for semi trucks

Lawrence Livermore National Laboratory (LLNL) and Verne, a San Francisco-based startup, have demonstrated a cryo-compressed hydrogen storage system of suitable scale for heavy-duty vehicles.  This is the first time cryo-compressed hydrogen storage has been demonstrated at a scale large enough to be useful for semi trucks, a milestone in high-density hydrogen storage.

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LLNL-led team receives DOE Award to establish inertial fusion energy hub

The U.S. Department of Energy (DOE) has awarded a four-year, $16 million project to a multi-institutional team led by LLNL to accelerate inertial fusion energy (IFE) science and technology. The Science and Technology Accelerated Research for Fusion Innovation and Reactor Engineering (STARFIRE) Hub consists of members from seven universities, four U.S. national labs, one international lab, three commercial entities, one philanthropic organization and three private IFE companies.  

In addition to researchers from LLNL, other participants include General Atomics; UC San Diego; UC Berkeley; UCLA; University of Rochester; MIT; University of Oklahoma; Texas A&M University; Fraunhofer Institute for Laser Technology; TRUMPF Inc.; Leonardo Electronics US Inc.; the Livermore Lab Foundation; SLAC; ORNL; SRNL; Xcimer Energy; Focused Energy Inc.; and Longview Fusion Energy Systems.

Energy and Environment Technologies

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Diffuse discharge circuit breaker with latching switch

A thyristor will stay conducting until the current through the device is zero (“current zero”) or perhaps slightly negative.  LLNL’s approach is to use the opticondistor (“OTV”) to force this current zero in order to force the device into an “off” state.  By combining a light-activated thyristor with an OTV, a noise-immune, high efficiency, high-power switching device can be constructed. The…

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LLNL energy grid protection device

The approach is to leverage the fact that a momentary “load” equal to the power transmission line impedance, (Z0), during the transient can suppress its propagation.  Z(0) is typically a fixed impedance of several hundred ohms based on the geometry of most single wire transmission lines.

So, an isolated self-powered opticondistor (OTV) system may provide an ultrafast method of…

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Boss Circuit Breaker

LLNL’s novel approach to enable MVDC power systems to operate safely is to develop a wideband gap bulk optical semiconductor switch (WBG BOSS) circuit breaker.  For higher power, efficiency and temperature operation, vanadium-doped silicon carbide (V-doped SiC) appears to be the most promising basis for WBG BOSS circuit breaker (other dopants like aluminum, boron and nitrogen may further…

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Sub-device integrated with Main device of the flow battery (A) and a cross-section of the sub-device (B)

LLNL researchers has developed an approach to mitigate HER on the ‘plating’ electrode, which uses a sub-device as a rebalancing cell to restore electrolyte properties, including pH, conductivity, and capacity across the main device of the flow battery.  This sub-device, which may need to be powered externally, has three major physical components: (1) a cathode electrode, (2) an anode electrode…

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Electrical grid

LLNL has developed a novel methodology for using commercially available automated sensors and actuators which can be deployed at scale in large appliances and plug-in EVs to provide as needed electric grid stabilization capabilities. The approach comprises of a population of voltage relays with a range of setpoints that would gradually reduce load as voltage falls. More severe voltage…

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Electrodeposition of Zn onto 3D printed copper nanowire (CuNW)

Improving the active material of the Zn anode is critical to improving the practicality of Zn-MnO2 battery technology. LLNL researchers have developed a new category of 3D structured Zn anode using a direct-ink writing (DIW) printing process to create innovative hierarchical architectures.  The DIW ink, which is a gel-based mixture composed of zinc metal powder and organic binders, is extruded…

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Compared with conventional slurry-based film electrode manufacturing methods, dry laser powder bed fusion is promising in generating structured electrodes for high power, low cost lithium ion batteries

To address many of the aforementioned challenges of manufacturing LIBs and SSBs, LLNL researchers have developed a number of inventions that offer proposed solutions for their components:

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Electromechanical battery

The design calculations that have been performed in exploring the potentialities of LLNL's new approaches to flywheel energy storage have been built on existing and past LLNL flywheel programs, including a program aimed at flywheel systems for the bulk storage of electricity at utility scale. To achieve the requirements of such systems, as mentioned above, LLNL has developed some key new…