Northridge, CA, United States

Chemat Technology, Inc.

www.chemat.com
Northridge, CA, United States
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Grant
Agency: Department of Defense | Branch: Navy | Program: STTR | Phase: Phase I | Award Amount: 80.00K | Year: 2011

EM Railgun project in Navy demands safe, high energy and long cycle life Li-ion batteries. In this Phase I research, we will demonstrate the feasibility of Li2MSiO4 cathode materials for this application. Special thin coatings will be self-assembled on the nanosize particles to significantly improve the performance to achieve high capacity (>200 mAh/g) at>4V with extended cycle life. The sol-gel chemistry, process will be developed and a Li-ion cell will be fabricated. The results generated in the Phase I will be used to optimize the process in Phase II.


Grant
Agency: Department of Defense | Branch: Air Force | Program: STTR | Phase: Phase II | Award Amount: 749.99K | Year: 2013

ABSTRACT: The emerging technology of protean glass/ceramic materials, where RF and DC electrical properties can be imbued in the material volume by laser excitation and subsequent material transformation processes has great potential especially for the military applications. In this Phase I research, Chemat has successfully prepared a protean glass which is photosensitive. A pattern such as a 3 5 mm line has been made by exposing the masked glass to UV Arc lamp, and the exposed line becomes semi-conductive. Further heat treatment in inert atmosphere transforms the exposed line to be metallic conductor. Preliminary laser direct writing on the glasses cause the change in conductivity in the laser written area. In this Phase II research, we plan to optimize the glass composition and melting conditions to make liter size of the glasses of optical quality. The transformation mechanism of the glasses from insulating to semi-conducting after exposed to UV Arc lamp will be determined and the formation and dynamics of the conductive phase will be studied. A conductive line will be built inside the glass using laser direct-writing and following heat treatment. Two types of antennas embedded inside the glasses: Marconi Antenna and 3D fractal antenna will be fabricated and characterized. BENEFIT: The technology developed in this Phase II project has several unique advantages: (1) building complex 3D structures which cannot make using other technology; (2) a low cost simple process; and (3) fully embedded (protected) inside the glass. The success of this research and development will lead to many potential commercial applications: sensor-rich micro analysis biological systems for point-of-care testing, architectural panels for modern office buildings, optical components, and high temperature ceramics.


Grant
Agency: NSF | Branch: Standard Grant | Program: | Phase: | Award Amount: 500.00K | Year: 2010

This Small Business Innovation Research (SBIR) Phase II project aims to develop high dielectric constant (high-K) thick film for high-frequency ultrasonic transducer. Thick piezoelectric film technology is very attractive for the fabrication of thin piezoelectric element in high-frequency ultrasonic medical imaging applications. However, it is challenging to process high-quality piezoelectric film with thickness in the range of 10-20 micrometers. In addition, the film needs to demonstrate dielectric constant of 3000 or higher due to the need of electric matching in fabricating array transducers. In previous Phase I project, a piezoelectric thick film with dielectric constant higher than 3000 was demonstrated. In this Phase II project, the high-K thick film will be utilized to develop miniature high frequency single element and linear array transducers for Intravascular Ultrasonic (IVUS) imaging applications.

The broader/commercial impact of this project will be the potential to provide high-K thick film to enable the application of miniature high-frequency ultrasonic transducers. IVUS is a medical imaging methodology using a specially designed catheter with a miniaturized ultrasound probe attached to the distal end of the catheter, which is inserted into the heart or into a coronary vessel for visualizing the vessel and heart structure. This project is expected to further miniaturize the ultrasonic transducer mounted on the catheter and provide improved resolution. With this anticipated catheter, surgeons may view the arteries of patients more clearly and spend less surgery time. Plus, the smaller size will make the procedure less invasive. In addition, this technology can also be used in other applications such as Radio Frequency (RF) filters for cell phone, ultrasonic valve and tuning devices, liquid delivery and droplet ejectors, chemical and biomedical sensors etc.


Grant
Agency: Department of Defense | Branch: Air Force | Program: SBIR | Phase: Phase II | Award Amount: 747.63K | Year: 2013

ABSTRACT: The goal of this technology development is to design, develop and test Li-ion battery cells with long cyclic life composing an advanced cathode. There are number of candidate cathode and anode materials are considered promising candidates for lithium ion battery due to their large capacity and relatively good rate capability, low self-discharge and relatively good capacity retention as well as ease of monitoring state of charge. However, their cyclic life is still far from satisfying DOD"s needs for space application as stated above. Main challenges for current cathode materials include considerable deterioration of the cycle stability due to structural changes, dissolution of transition metal and oxygen; formation of passive layer from decomposition of electrolyte, impedance growth; and thermal instability of cathode material. In this proposed research, we will develop, evaluate and validate advanced materials (including anode, cathode and electrolyte) for use in Li-ion battery. In Phase I, we have demonstrated that novel cathode material can deliver high initial specific energy with high capacity retention. In Phase II, prototype Li-ion cells will be designed and fabricated with selected cathode and anode materials. BENEFIT: Rechargeable battery with high energy density (>200 Wh/kg) and long cycle life (>60,000) has application in military communications satellites. Light weight and long lasting battery is also essential for Army battle field application, unmanned aerial vehicles (UAVs), Navy"s All Electric Ship and also all the department of defense (ex. EM Railgun and Free Electron Lasers). The use of high-energy-density, high-depth-of-discharge batteries will improve power system efficiency and lifetime. In addition, long lasting fast charging battery is very attractive to implantable power sources, consumer electronic device (lap-top computer, cell phones, digital cameras, etc.) users and handheld tool users, especially when"mobile"is becoming essential indispensable in our life. Medical application is another possibility such as medical devicesX-ray machine, ultrasound system etc.


Grant
Agency: Department of Defense | Branch: Air Force | Program: STTR | Phase: Phase I | Award Amount: 100.00K | Year: 2011

ABSTRACT: Photosensitive protean materials form essentially a new class of materials which are manufactured in one state but its select material properties can be physically and locally altered through patterning and lithography. In this proposed research, we will demonstrate the feasibility of creation of conductive copper lines imbued in the glass by using novel glasses with laser direct writing. the electrical properties of the glasses will be characterized. The success of this Phase I research will build the base to build unique devices inside the glasses. BENEFIT: The success of the proposed Phase I research will build a foundation to integrate the devices into the glass/ceramics which have many advantages in applications: Military Applications (sensors, mass producible space platforms, integrated miniature antenna systems, multifunction space propulsion systems, microwave devices, high temperature components, reduction of wiring harnesses near electrical insulating systems) and Commercial Applications (sensor-rich micro analysis biological systems for point-of-care testing, architectural panels for modern office buildings, optical components, and high temperature ceramics). Commercial Application: Sensor-rich micro analysis biological systems for point-of-care testing, architectural panels for modern office buildings, optical components, and high temperature ceramics.


Grant
Agency: Department of Defense | Branch: Army | Program: STTR | Phase: Phase II | Award Amount: 750.00K | Year: 2011

Interest in lithium metal-air batteries has been growing in recent years, along with the demand for lighter power sources for devices ranging from plug-in hybrid vehicles to laptops. In lithium-ion batteries, the electrodes are made of materials such as graphite, while in a lithium-metal battery, the anode is made up entirely of lithium metal, and the surrounding air can act as the cathode. Lithium-metal batteries approach the energy density of fuel cells without the plumbing needed for these devices; in theory, the maximum energy density is more than 5,000 watt-hours per kilogram, or more than 10 times that of today''s lithium-ion batteries. Lithium metal-air batteries are also very lightweight because it''s not necessary to carry a second reactant. Highly ionic conductive windable electrolyte will be incorporated into lithium air battery and battery park in Phase II. The battery-relevant electrochemical characteristics of the lithium-air system will be tested. The chemical and electrochemical stability of the battery as a function of temperature and discharge rate will be assessed.


Grant
Agency: Department of Health and Human Services | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 108.77K | Year: 2011

DESCRIPTION (provided by applicant): Today Rx-manufacturing in the ophthalmic industry is a complex process with many production steps, substantial batch processing and a lot of manual handling especially in the coating steps. With digital surfacing technology, designers are able to translate intricate design concepts (personalized and advanced aspheric corrections etc.) needed to accomplish improvement from the drawing board into a real lens. Current digital lens surfacing production systems are generallyexpensive, complicated and bulky which limits its wide applications. The significant investment and high demanding in labor skills drive the optical lab works to outside US, decreasing jobs in US even this industry is a service industry which work should be done locally in US. In this proposed research, we plan to develop the cut-to-coat digital surfacing technology - a coating process to replace the fining/polishing steps used in optical lens fabrication for the digital lens manufacturing. A couple of coating solutions with different refractive index will be formulated in order to match lenses with different refractive index from 1.499 (CR-39), to 1.74 (high Index). This innovation will bring the freeform technology to a new level: (1) truly freeform optics; (2) low capital investment; (3) affordability of the freeform lenses and (4) retaining freeform lens fabrication work locally (especially in US) by eliminating the polishing step so that the total investment of the digital surfacing process and operation labor will be significant lower to allow the most US small Rx labs (wholesale and retail) to adopt this technology. The proposed new Cut-To-Coat technology opens the door to use very efficiently semi-finished blank lenses being fully hard- and AR-coated on the front side in the Rx-process, and is a series of new technologies which will compose a novel Rx lens manufacturing technology: the inline spin-on hard coating and AR coating technologies and the pre-blocking semi-finished lens technology using environmentally benign plastics. The success of this proposed technology will not only increase production efficiency (saving on polishing time and labors as well as investment in polishing equipment) but also eliminate the usage of non-environmentally benign polishing slurries and other consumables. The cost saving is estimated to be one third to half ( 50 - 75) to produce the digital lenses using the cut-to-coat technology comparing the state-of-the-art cut-to-polish technology. Based on the current 1percent penetration by the optical lens market, this could result in total cost savings to the optical retailer of between 30 million and 60 million annually. As the market penetration increases, the total cost savings to the optical retailer could be ashigh as billions when the market is fully developed, and the potential savings to the American consumer could be even higher.


Grant
Agency: National Science Foundation | Branch: | Program: SBIR | Phase: Phase II | Award Amount: 500.00K | Year: 2010

This Small Business Innovation Research (SBIR) Phase II project aims to develop high dielectric constant (high-K) thick film for high-frequency ultrasonic transducer. Thick piezoelectric film technology is very attractive for the fabrication of thin piezoelectric element in high-frequency ultrasonic medical imaging applications. However, it is challenging to process high-quality piezoelectric film with thickness in the range of 10-20 micrometers. In addition, the film needs to demonstrate dielectric constant of 3000 or higher due to the need of electric matching in fabricating array transducers. In previous Phase I project, a piezoelectric thick film with dielectric constant higher than 3000 was demonstrated. In this Phase II project, the high-K thick film will be utilized to develop miniature high frequency single element and linear array transducers for Intravascular Ultrasonic (IVUS) imaging applications. The broader/commercial impact of this project will be the potential to provide high-K thick film to enable the application of miniature high-frequency ultrasonic transducers. IVUS is a medical imaging methodology using a specially designed catheter with a miniaturized ultrasound probe attached to the distal end of the catheter, which is inserted into the heart or into a coronary vessel for visualizing the vessel and heart structure. This project is expected to further miniaturize the ultrasonic transducer mounted on the catheter and provide improved resolution. With this anticipated catheter, surgeons may view the arteries of patients more clearly and spend less surgery time. Plus, the smaller size will make the procedure less invasive. In addition, this technology can also be used in other applications such as Radio Frequency (RF) filters for cell phone, ultrasonic valve and tuning devices, liquid delivery and droplet ejectors, chemical and biomedical sensors etc.


Grant
Agency: Department of Defense | Branch: Air Force | Program: SBIR | Phase: Phase I | Award Amount: 149.97K | Year: 2012

ABSTRACT: The goal of this technology development is to design, develop and test Li-ion battery cells with long cyclic life composing an advanced cathode. There are number of candidate cathode and anode materials are considered promising candidates for lithium ion battery due to their large capacity and relatively good rate capability, low self-discharge and relatively good capacity retention as well as ease of monitoring state of charge. However, their cyclic life is still far from satisfying DOD"s needs for space application as stated above. Main challenges for current cathode materials include considerable deterioration of the cycle stability due to structural changes, dissolution of transition metal and oxygen; formation of passive layer from decomposition of electrolyte, impedance growth; and thermal instability of cathode material. In this proposed research, we will develop, evaluate and validate advanced materials (including anode, cathode and electrolyte) for use in Li-ion battery. Phase I focus is to prove that the proposed battery chemistry and advanced material are promising for Low Earth Orbit (LEO) application. Phase I work will provide a very good base and direction for further development in Phase II towards the goal of fabrication of Li-ion battery with specific energy>200 Wh/kg and demonstrate long cycle life (60,000) under 60-100% DOD LEO conditions. BENEFIT: Li-ion battery with high energy density and long cyclic life is essential for military and civilian space application, especially for low earth orbiting satellites. High energy density and long cyclic life are also highly demanded for daily life application, such as battery for lab-top computer and other portable equipments, such as medical devicesX-ray machine, ultrasound system etc.


Grant
Agency: Department of Defense | Branch: Army | Program: STTR | Phase: Phase I | Award Amount: 123.00K | Year: 2010

Lithium-air battery consists of a lithium anode electrochemically coupled to atmospheric oxygen through an air cathode. The major advantages of lithium air batteries are that air cathode active material, oxygen, is not stored internal to cell system and lithium anode being extremely lightweight metal with a highest theoretical specific energy density. This energy density is well comparable with that of gasoline device. This energy density is 10 times higher than the highest energy density for presently available commercial lithium-ion batteries. In addition to these advantages, the lithium air batteries can offer a flat discharge voltage profile, environmental friendliness, and long storage life. Lithium air battery can also be fabricated either in chargeable or non-chargeable modes. These features identify the lithium air batteries as the potential power sources for the portable electronic devices, electric vehicles, and defense applications. In this proposed research, we plan to develop windable electrolyte membrane starting from nanosized LiM2(PO4)3 type powder. Testing cell of lithium-air battery will be constructed and characterized in Phase I.

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