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Silicon Nanofiber Paper Battery

Brief description not available

Porous Silicon Nanosphere Battery

Brief description not available

Workflow to Computationally Optimize Upcycling of Critical Metals from Spent Lit

This technology computationally optimizes the upcycling of critical metals in deep eutectic solvents with molecular dynamics, artificial intelligence, and experimental approaches.

Carbon Dioxide Flow Battery

Inventors at UCI have developed a novel electrocatalyst that reversibly converts carbon dioxide to its reduced form for the power source of a flow battery. The incorporation of this novel electocatalyst allows a common chemical, such as carbon dioxide to be included in the flow battery providing more affordable alternative than what is currently used. Furthermore, this technology has increased solubility, improving the energy density of the battery.

A New Doping Strategy for Layered Oxide Electrode Materials Used in Lithium-Ion Batteries

Researchers at UCI have invented a novel method that significantly improves the design and efficiency of lithium ion batteries. The invention is based on a “high entropy” or “cocktail” doping strategy, which improves the electrochemical performance of cathode materials through increasing energy density and cycle life and reducing reliance on expensive and toxic materials such as Cobalt.

Laser additive manufacturing method for producing porous layers

The inventors at UCI have created a method of doping layered cathode materials in sodium-ion batteries. In this method more than five impurity elements are introduced into a host material, in this case a sodium-based layered cathode material, Na0.667Mn0.666Ni0.167Co0.167O2. This technique is being utilized in order to create sodium-ion batteries that are more competitive with the historically used lithium-ion battery.

Cardiac Energy Harvesting Device And Methods Of Use

This technology involves a medical device implanted in the heart’s ventricle that recharges leadless pacemakers. This device contains magnets and inductive coils whose motion is coupled to the contractions of the ventricles in order to create electricity.

Group 13 Metals as Anolytes in Non-Aqueous, Redox Flow Batteries

Researchers at the University of California, Davis have identified earth abundant and other relatively inexpensive materials that form the basis of novel molecules (anolytes), with long lifecycles and high energy densities, to be used in redox flow batteries.

Advanced Lithium-Sulfur Battery Technology

Profs. Cengiz and Mihrimah Ozkan from the University of California, Riverside have developed multiple improvements to lithium-sulfur battery technology to increase their viability in commercial applications. These methods include the suppression of the shuttle effect via a magnetron sputtered titanium dioxide thin film, silicon and carbon nanocomposite spheres to enhance electrochemical performance, and a methodology for conditioning Li-S cells. With improvements like these, Li-S batteries may succeed lithium-ion cells because of their theoretically longer battery life and larger storage capacity that is ideal for devices like electric vehicles and handheld electronics. Fig 1: Schematic of enhanced Li-S battery anode material.  

Laser Additive Manufacturing Method For Producing Porous Layers.

A method of metal additive manufacturing which allows for production of porous products with pore size potentially down to the nanometer-scale.

A Battery-Less Wirelessly Powered Frequency-Swept Spectroscopy Sensor

UCLA researchers in the Department of Electrical and Computer Engineering have developed a wirelessly powered frequency-swept spectroscopy sensor.

Voltage-Responsive Coating for Lithium-Sulfur Battery

Researchers in the UCLA Department of Chemical and Biomolecular Engineering have developed a lithium-sulfur battery that overcomes the poor recharging and short lifespan problems common among other lithium-sulfur battery configurations.

Simple Low-Cost Battery Electrode Alternative

Prof. Mangolini and his colleagues from the University of California, Riverside have developed a novel silicon-tin nanocomposite that may be used as anodes for lithium ion batteries. Commercial silicon particles and off-the-shelf additives such as tin dichloride are used due to their low material cost, and have shown good performance in both capacity and stability. These hybrid structures show a dramatic improvement compared to those prepared with silicon alone. Measurements suggest that these composites have an overall lower active layer resistance compared to a silicon-only case. This avoids the formation of electrical “dead spots”, and enables the full utilization of the active material. The effectiveness of this simple, low-cost approach suggests that if used in combination with more advanced structures, it may be provide the critical improvement necessary to finally realize a silicon-based next-generation anode. Fig 1: (A) Top-down SEM of the active layer after coating and annealing, without the addition of the tin precursor (B) Same as (A), but with the addition of the tin precursor.  

High-Storage-Capacity Battery Anode Alternative

Prof. Mangolini and his colleagues from the University of California, Riverside have developed a novel process for coating silicon nanoparticles with a conformal shell of carbon specifically optimized for electrochemical energy storage applications. This process allows for simple control of the thickness and degree of graphitization of the nanoparticles. The introduction of a highly-graphitic carbon coating on the surface of the silicon particles serves as a buffer layer, promoting a more robust cycling, and improves the overall electrical conductivity of the silicon-carbon composite. Replacement of 10% by weight of graphite in the electrode composition results in an increase of 60% in the storage capacity silicon-carbon core-shell nanocomposites represent a promising high storage capacity alternative to the current graphite-based lithium-ion battery anodes, while also overcoming the obstacles that prevent the use of silicon particles in energy storage applications.  Fig 1: High-resolution TEM images showing the high uniformity of the carbon coating wrapping a single silicon nanoparticle.  

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These technologies are part of the UC QuickStart program.