Jason Salim - Academia.edu (original) (raw)

Papers by Jason Salim

Research paper thumbnail of Aqueous Liquid Solutions for LI-Liquid Battery

The evolvement of Lithium-ion battery industries has begun to carry the industries to step in a n... more The evolvement of Lithium-ion battery industries has begun to carry the industries to step in a new revolution. Consequently, high demand in high energy density batteries in many electronic and electrical appliances, especially energy storage industries been emerged. This new type of batteries has been in extensive research, such as lithium-water battery. Lithium-water battery is a newly developed battery with lithium as the anode and water as the cathode. Lithium is known as one of the most reactive metals in periodic table. Therefore, rigorous reaction will be observed when lithium is reacted with water and hence potentially providing an extremely high energy density. This rigorous reaction can be converted into electrical energy and can be stored in a cell. Lithium-water battery is novel and hence, there is no standardized design. In this presentation, lithium anode is separated from water by liquid electrolyte and a ceramic solid electrolyte. The glass-ceramic solid electrolyte ...

Research paper thumbnail of Lithium–liquid battery: harvesting lithium from waste Li-ion batteries and discharging with water

RSC Advances, 2012

This study demonstrates the feasibility of using water and the contents of waste Li-ion batteries... more This study demonstrates the feasibility of using water and the contents of waste Li-ion batteries for the electrodes in a Li–liquid battery system. Li metal was collected electrochemically from a waste Li-ion battery containing Li-ion source materials from the battery's anode, cathode, and electrolyte, thereby recycling the Li contained in the waste battery at room temperature. The harvested Li metal in the battery system was discharged to produce electricity by using water as the cathode. The discharge voltage of the water showed 2.7 V at 0.1 mA cm−2versus Li metal harvested from waste Li-ion batteries, compared to 2.8 V versus fresh Li metal at the same current rate. Since the electrodes for this proposed battery system are water and the contents of waste Li-ion batteries, the cost of the battery decreases, which is an attractive strategy for a large size energy storage application.

Research paper thumbnail of Perovskite Sr0.95Ce0.05CoO3−δ loaded with copper nanoparticles as a bifunctional catalyst for lithium-air batteries

Journal of Materials Chemistry, 2012

Sr 0.95 Ce 0.05 CoO 3Àd (SCCO) particles loaded with copper nanoparticles on their surface are sh... more Sr 0.95 Ce 0.05 CoO 3Àd (SCCO) particles loaded with copper nanoparticles on their surface are shown to be excellent, low-cost, and stable bifunctional catalysts for the oxygen-reduction and oxygen-evolution reactions (ORR and OER) in aqueous solution. Evidence for the presence of Ce 3+ and Co 2+ as well as Co 4+ and Co 3+ ions revealed by XPS measurements as well as XRD analysis indicates that a CeCoO 2.5 brownmillerite phase may be extruded to the surface. A surface Co 4+ /Co 3+ couple is known to be a good OER catalyst. The performance of the SCCO-based catalysts is better at higher current rates (>0.1 mA cm À2) than that of Vulcan XC-72 and even close to that of the 50% Pt/carbon-black catalyst. This catalyst could be used in a metal/air battery or a PEM fuel cell as an efficient and stable bifunctional catalyst.

Research paper thumbnail of Li-Water Battery with Oxygen Dissolved in Water as a Cathode

Journal of The Electrochemical Society, 2013

ABSTRACT In this work, we demonstrate a lithium-water battery that uses oxygen dissolved in water... more ABSTRACT In this work, we demonstrate a lithium-water battery that uses oxygen dissolved in water as a cathode, Sr0.95Ce0.05CoO3-delta (SCCO)-copper nanoparticles as an efficient bifunctional catalyst, and with hybrid electrolytes. The SCCO-Cu composite catalyst exhibits an efficient and stable bifunctional catalytic activity, especially for the OER. The round-trip efficiency of the cell with SCCO-Cu nanoparticles catalyst reaches 84.1%, close to that of the 50% Pt/carbon-black catalyst (87.2%). The improved performance of the SCCO-Cu catalyst can be ascribed to the synergetic effect of SCCO and copper. The preliminary results demonstrate that the rechargeable lithium-water battery with oxygen dissolved in water flow can be achieved with high efficient and low cost oxide catalyst. This can be a good candidate for a large stationary energy storage system (ESS) with a low-cost.

Research paper thumbnail of Effects of aqueous electrolytes on the voltage behaviors of rechargeable Li-air batteries

Electrochimica Acta, 2012

Aqueous Li-air batteries have attracted a great deal of attention due to their high theoretical e... more Aqueous Li-air batteries have attracted a great deal of attention due to their high theoretical energy capacities. However, while still in the early stages of research, the reported energy capacities of Li-air batteries are far from what has been theoretically predicted. In this research, we have designed a Liair battery that has a Li | organic liquid electrolyte | Li +-conducting glass ceramic plate (LiGC plate) | aqueous electrolyte | Pt air electrode structure and studied the impacts of the compositions of the aqueous electrolyte on the battery performance. With lower concentrations of alkali aqueous electrolytes (≤0.05 M LiOH), a discharge voltage of approximately 3.5 V (at 0.05 mA cm −2) and a voltage efficiency up to 84% were observed. The addition of LiClO 4 into the aqueous solution slightly lowered the discharge voltage to 3.3 V but dramatically decreased the internal resistance of the battery to 35.4 cm −2. With a charge voltage plateau observed at 3.90 V at a current of 0.05 mA cm −2 , the Li | organic liquid electrolyte | LiGC | 1 M LiClO 4 | Pt air battery showed an 85% voltage efficiency at room temperature. Adding LiClO 4 into the aqueous electrolytes resulted in an impedance reduction and slowed the pH increase of the alkalinebased electrolyte due to the fast or long-term discharge of the air electrode in the Li-air battery. The discharge and charge voltage behaviors of the battery and the changes to the pH values of the aqueous electrolyte at different current rates were also recorded and are presented in this paper.

Research paper thumbnail of Flowerlike Co3O4 microspheres loaded with copper nanoparticle as an efficient bifunctional catalyst for lithium–air batteries

Electrochemistry Communications, 2013

Porous flowerlike Co 3 O 4 microspheres/Cu nanoparticles composite has been synthesized via a com... more Porous flowerlike Co 3 O 4 microspheres/Cu nanoparticles composite has been synthesized via a combined solvothermal method, subsequent thermal treatment and polyol process. Due to the 3D mesoporous structure, the resulting Co 3 O 4 microspheres/Cu catalyst shows an efficient and stable bifunctional catalytic activity. The cobalt oxide-based catalysts show better performance during the discharging and charging processes at a current density of 0.05 mA cm −2 compared with that of the Vulcan XC-72. The cell with this novel catalyst can be reversibly charged/discharged and has a good cycle performance. The preliminary results indicate that the Porous flowerlike Co 3 O 4 microspheres/Cu nanoparticles composite is a promising material for a metal/air battery or a PEM fuel cell as an efficient and stable bifunctional catalyst.

Research paper thumbnail of Aqueous Liquid Solutions for LI-Liquid Battery

The evolvement of Lithium-ion battery industries has begun to carry the industries to step in a n... more The evolvement of Lithium-ion battery industries has begun to carry the industries to step in a new revolution. Consequently, high demand in high energy density batteries in many electronic and electrical appliances, especially energy storage industries been emerged. This new type of batteries has been in extensive research, such as lithium-water battery. Lithium-water battery is a newly developed battery with lithium as the anode and water as the cathode. Lithium is known as one of the most reactive metals in periodic table. Therefore, rigorous reaction will be observed when lithium is reacted with water and hence potentially providing an extremely high energy density. This rigorous reaction can be converted into electrical energy and can be stored in a cell. Lithium-water battery is novel and hence, there is no standardized design. In this presentation, lithium anode is separated from water by liquid electrolyte and a ceramic solid electrolyte. The glass-ceramic solid electrolyte ...

Research paper thumbnail of Lithium–liquid battery: harvesting lithium from waste Li-ion batteries and discharging with water

RSC Advances, 2012

This study demonstrates the feasibility of using water and the contents of waste Li-ion batteries... more This study demonstrates the feasibility of using water and the contents of waste Li-ion batteries for the electrodes in a Li–liquid battery system. Li metal was collected electrochemically from a waste Li-ion battery containing Li-ion source materials from the battery's anode, cathode, and electrolyte, thereby recycling the Li contained in the waste battery at room temperature. The harvested Li metal in the battery system was discharged to produce electricity by using water as the cathode. The discharge voltage of the water showed 2.7 V at 0.1 mA cm−2versus Li metal harvested from waste Li-ion batteries, compared to 2.8 V versus fresh Li metal at the same current rate. Since the electrodes for this proposed battery system are water and the contents of waste Li-ion batteries, the cost of the battery decreases, which is an attractive strategy for a large size energy storage application.

Research paper thumbnail of Perovskite Sr0.95Ce0.05CoO3−δ loaded with copper nanoparticles as a bifunctional catalyst for lithium-air batteries

Journal of Materials Chemistry, 2012

Sr 0.95 Ce 0.05 CoO 3Àd (SCCO) particles loaded with copper nanoparticles on their surface are sh... more Sr 0.95 Ce 0.05 CoO 3Àd (SCCO) particles loaded with copper nanoparticles on their surface are shown to be excellent, low-cost, and stable bifunctional catalysts for the oxygen-reduction and oxygen-evolution reactions (ORR and OER) in aqueous solution. Evidence for the presence of Ce 3+ and Co 2+ as well as Co 4+ and Co 3+ ions revealed by XPS measurements as well as XRD analysis indicates that a CeCoO 2.5 brownmillerite phase may be extruded to the surface. A surface Co 4+ /Co 3+ couple is known to be a good OER catalyst. The performance of the SCCO-based catalysts is better at higher current rates (>0.1 mA cm À2) than that of Vulcan XC-72 and even close to that of the 50% Pt/carbon-black catalyst. This catalyst could be used in a metal/air battery or a PEM fuel cell as an efficient and stable bifunctional catalyst.

Research paper thumbnail of Li-Water Battery with Oxygen Dissolved in Water as a Cathode

Journal of The Electrochemical Society, 2013

ABSTRACT In this work, we demonstrate a lithium-water battery that uses oxygen dissolved in water... more ABSTRACT In this work, we demonstrate a lithium-water battery that uses oxygen dissolved in water as a cathode, Sr0.95Ce0.05CoO3-delta (SCCO)-copper nanoparticles as an efficient bifunctional catalyst, and with hybrid electrolytes. The SCCO-Cu composite catalyst exhibits an efficient and stable bifunctional catalytic activity, especially for the OER. The round-trip efficiency of the cell with SCCO-Cu nanoparticles catalyst reaches 84.1%, close to that of the 50% Pt/carbon-black catalyst (87.2%). The improved performance of the SCCO-Cu catalyst can be ascribed to the synergetic effect of SCCO and copper. The preliminary results demonstrate that the rechargeable lithium-water battery with oxygen dissolved in water flow can be achieved with high efficient and low cost oxide catalyst. This can be a good candidate for a large stationary energy storage system (ESS) with a low-cost.

Research paper thumbnail of Effects of aqueous electrolytes on the voltage behaviors of rechargeable Li-air batteries

Electrochimica Acta, 2012

Aqueous Li-air batteries have attracted a great deal of attention due to their high theoretical e... more Aqueous Li-air batteries have attracted a great deal of attention due to their high theoretical energy capacities. However, while still in the early stages of research, the reported energy capacities of Li-air batteries are far from what has been theoretically predicted. In this research, we have designed a Liair battery that has a Li | organic liquid electrolyte | Li +-conducting glass ceramic plate (LiGC plate) | aqueous electrolyte | Pt air electrode structure and studied the impacts of the compositions of the aqueous electrolyte on the battery performance. With lower concentrations of alkali aqueous electrolytes (≤0.05 M LiOH), a discharge voltage of approximately 3.5 V (at 0.05 mA cm −2) and a voltage efficiency up to 84% were observed. The addition of LiClO 4 into the aqueous solution slightly lowered the discharge voltage to 3.3 V but dramatically decreased the internal resistance of the battery to 35.4 cm −2. With a charge voltage plateau observed at 3.90 V at a current of 0.05 mA cm −2 , the Li | organic liquid electrolyte | LiGC | 1 M LiClO 4 | Pt air battery showed an 85% voltage efficiency at room temperature. Adding LiClO 4 into the aqueous electrolytes resulted in an impedance reduction and slowed the pH increase of the alkalinebased electrolyte due to the fast or long-term discharge of the air electrode in the Li-air battery. The discharge and charge voltage behaviors of the battery and the changes to the pH values of the aqueous electrolyte at different current rates were also recorded and are presented in this paper.

Research paper thumbnail of Flowerlike Co3O4 microspheres loaded with copper nanoparticle as an efficient bifunctional catalyst for lithium–air batteries

Electrochemistry Communications, 2013

Porous flowerlike Co 3 O 4 microspheres/Cu nanoparticles composite has been synthesized via a com... more Porous flowerlike Co 3 O 4 microspheres/Cu nanoparticles composite has been synthesized via a combined solvothermal method, subsequent thermal treatment and polyol process. Due to the 3D mesoporous structure, the resulting Co 3 O 4 microspheres/Cu catalyst shows an efficient and stable bifunctional catalytic activity. The cobalt oxide-based catalysts show better performance during the discharging and charging processes at a current density of 0.05 mA cm −2 compared with that of the Vulcan XC-72. The cell with this novel catalyst can be reversibly charged/discharged and has a good cycle performance. The preliminary results indicate that the Porous flowerlike Co 3 O 4 microspheres/Cu nanoparticles composite is a promising material for a metal/air battery or a PEM fuel cell as an efficient and stable bifunctional catalyst.