23 innovations from Bar-Ilan University, available for licensing, co-investment, or spin-out through BIRAD.
Nessim Gilbert
The innovation described here consists of synthesizing in a one-step process a self-standing electrode with single-atom catalysts (SACs) supported on a nanocarbon matrix that will outperform the established standards at a much cheaper cost for most electrocatalytic reactions. The scientific breakthrough supporting this research is based on the simultaneous delamination and doping of a thin film stack using chemical vapor deposition (CVD).
Shor Joseph
The Vcc level and temperature of IC’s are important parameters which determine the power / performance. Resonances in the package and platform can cause significant AC voltage droops which can degrade functionality, requiring additional guard-band. Prior-art droop detectors utilize digital delay circuits, such as tunable replica circuits to measure these droops. However, the delay is a strong function of temperature as well as the DC Vcc level, making it difficult to differentiate the AC droop across different voltage and temperature levels. It is proposed to utilize a current controlled oscillator (CCO) with an analog bias to mitigate the voltage and temperature dependencies, such that only the AC droop is measured. The CCO frequency is independent of the DC Vcc level, while the temperature is also characterized along with the AC droop, such that both temperature and droop levels can be extracted. The sensor can measure droops and temperature to an accuracy of 10mV and ±3oC respectively. The circuit occupies 8800 μm2 in 65nm with a power consumption of 297 µW. This circuit is very useful to characterize the power grid in design for test (DFT) applications as well as on-the-fly real time chip operation.
Shor Joseph
A Droop mitigation system is featured which includes an inverter-based droop detector as well as Dual Mode Logic (DML). The droop detector is based on capacitor ratios and is thus insensitive to PVT. The DML logic can alter its power/performance ratio based on the droop level input it receives from the detector, such that the critical timings are preserved. The droop detector consumes 62uW, has a response time of 2ns and an accuracy of 0.9%, making it one of the fastest, most accurate, and lowest power droop detectors in its class. A ripple carry adder is demonstrated, with DML logic in its critical path, which can maintain timing for droops as high as 400mV.
Aurbach Doron
An electrochemical reactor that works in asymmetric method using flow electrodes to produce low cost green hydrogen gas. The electrochemical cell produces hydrogen using faradaic reaction for hydrogen evolution and capacitance electrostatic adsorption instead of oxygen evolution. Based on our Nofar scholar research, we developed and improved the device that is based on the described patent named:"METHOD AND APPARATUS FOR HYDROGEN PRODUCTION BY ELECTROLYSIS". Instead of using a static electrodes for the capacitance behavior we use flow electrodes that allows the regeneration of the electrodes outside the reactor in a different cell; hence, we do not require to pause the evolution of hydrogen for electrode regeneration and we need less electrodes that lower the cost of the electrochemical reactor.
Teman Adam
The invention is the product of my Magneton project with CEVA. It includes a novel architecture for generating flip flop based register files with many ports (more than two read and write ports). The architecture uses clock gating based on word selection to reduce power consumption. It uses guided placement to reduce area.
Shor Joseph
This is a disclosure which replaces disclosure # 447 for which a provisional patent has been filed. The Vcc level and temperature of IC’s are important parameters which determine the power / performance. Resonances in the package and platform can cause significant AC voltage droops which can degrade functionality, requiring additional guard-band. Prior-art droop detectors utilize digital delay circuits, such as tunable replica circuits to measure these droops. However, the delay is a strong function of temperature as well as the DC Vcc level, making it difficult to differentiate the AC droop across different voltage and temperature levels. It is proposed to utilize a current controlled oscillator (CCO) with an analog bias to mitigate the voltage and temperature dependencies, such that only the AC droop is measured. The CCO frequency is independent of the DC Vcc level, while the temperature is also characterized along with the AC droop, such that both temperature and droop levels can be extracted.
Aurbach Doron
Brought herein a novel system for periodic capture and release of CO2 from air using asymmetric configuration electrochemical cells. The capture and release mechanism are based on the "pH swing" principle in which CO2 is efficiently being absorbed into alkaline solution and being released when the solution becomes acidic. Adjustment of the pH of the solution is controlled by passing current through a special asymmetric electrochemical reactor where the solution passes through the reactor. Absorption of CO2 from the air or exhaust gas ("flue gas") is facilitated by passing the solution and CO2 through ordinary absorption column (or tower).
Noked Malachi
Spherical LiNiO2 (LNO) is synthesized by scalable solid state route. Strategically controllable synthesis approach endowed with suppression of detrimental phase transformation. The presented approach facilitate dense LNO with controllable shape and in-situ doping option. Including also surface modification by unique ALD process for LAZO And demonstration in solid state lithium batteries
Noked Malachi
Here in our discovery, we present an innovative strategy to solve the self-discharge issue and to increase the battery's charge capacity. Moreover, we present all the electro-analytical results within a static battery (non-flow), indicating a discovery that meets more challenging and complex standards. The invention's strategy is the use of porous cathodes with a large surface area and the integration and embedding of bromine-capturing materials within expanded nanocavities. Additionally, we demonstrate an ideal quantitative range of bromine-capturing materials that can be introduced into the cathode pores. Discovering the correct quantity for operation is critical—either addition or reduction of the quantity adversely affects the battery's capabilities and fails to achieve desired performance. Furthermore, the invention showcases the creation of organic phases within the aqueous medium inside the pores, depending on bromine-capturing material types, that maximize bromine capture and prevent side reactions that may affect cathode efficiency
Noked Malachi
Spherical LiNiO2 (LNO) is synthesized by scalable solid state route. Strategically controllable synthesis approach endowed with suppression of detrimental phase transformation. The presented approach facilitate dense LNO with controllable shape and in-situ doping option.
Aurbach Doron
High energy cathode for lithium sulfur cell. Current collector with a two-layer structure consisting of a layer with low areal electronic resistance (e.g., C-coated metal Al) and a layer with a porous structure (e.g., carbon paper) adhered on top. Cathode for lithium sulfur batteries containing two types of binder, swell-able and non-swellable, in the electrode plate, and the two types of binder are arranged in a layered configuration. "
Noked Malachi
In the present work, we purpose to achieve cobalt-free high capacity cathode for Na-ion batteries using high entropy approach. High entropy approach comprises the mixing of more than five elements in a single phase which itself is a challenge as it involves interplay between different elements to get the desired properties. Here, Li is introduced in the composition to get high configurational entropy that offers Na vacant sites, hence stabilizes the crystal structure by entropy stabilization, accelerate the kinetics and improves the air stability. With the optimization in the composition of cathode, a reversible capacity of 109 mAh g-1 (2-4V) and 144 mAh g-1 (2-4.3V) is observed in first few cycles with a significant stability during prolong cycling. Further, insitu and exsitu diffraction studies during charging and discharging has revealed that the high entropy strategy is successful in overcoming the complex phase transition in O3 layered structure by suppressing the O3’ phase. The impressive outcomes of the present work strongly motivate to pursue high entropy approach in developing efficient cathode for Na-ion batteries.
