Searching for a Better Thermal Battery

Gur, Ilan; Sawyer, Karma; Prasher, Ravi

doi:10.1126/science.1218761

Cited by 277 publications

(156 citation statements)

References 9 publications

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“…[42][43][44][45] In comparison to low temperature, the popular range of T c is 290-365 K, 46,47 covering around the room temperature range, and they possess widely wonderful applications including pyroelectric sensor, solar, medical, energy-saving and electronic application. [48][49][50][51][52][53][54][55] For example, various salts of glycine molecule with inorganic counterions were discovered to exhibit promising ferroelectricity and pyroelectricity at ambient-temperature. 52,55 Recently we have synthesized a lead-free semiconducting hybrid ferroelectric (N-methylpyrrolidinium) 3 (Sb 2 Br 9 ) in which disordering of Nmethylpyrrolidinium cation plays key role in temperature trigger phase transition.…”

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confidence: 99%

N-Methylpyrrolidinium hydrogen tartrate (NMPHT): an above-room-temperature order–disorder molecular switchable dielectric material

et al. 2017

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A novel molecular switchable dielectric material N-methylpyrrolidinium hydrogen tartrate (NMPHT) has been synthesized, which undergoes above room temperature phase transition. Thermal measurements, e.g. differential scanning calorimetry and specific heat, confirm the presence of a phase transition around 317.5 K. The dielectric measurement displays a distinct step-like anomaly around T c , showing two different dielectric states, which reveals that NMPHT is a switchable dielectric material. The single-crystal Xray diffraction analyses at variable temperatures demonstrate that the phase transition emerges from the severe disordering of the N-methylpyrrolidinium (NMP) cation, and during the transition the symmetry of NMPHT is transformed from higher (C2/c) to lower (P2 1 /n). These findings will provide a new horizon to design smart dielectric structural phase transition materials by incorporating a flexible NMP based scaffold.

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confidence: 99%

N-Methylpyrrolidinium hydrogen tartrate (NMPHT): an above-room-temperature order–disorder molecular switchable dielectric material

et al. 2017

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“…We use a cost for storage consistent with projections from the U.S. ARPA-E program. 39 No carbon constraints are applied in this scenario. In the IPCC Target scenario ("IPCC Target"), we restrict the "BAU with Carbon Cap" further by adding an overall carbon emission target of 80% below the 1990 level baseline in 2050, as proposed in the 2°C scenario recommended by the Intergovernmental Panel on Climate Change (IPCC).…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

SWITCH-China: A Systems Approach to Decarbonizing China’s Power System

Avrin²,

Nelson

et al. 2016

Environ. Sci. Technol.

140

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ABSTRACT:We present an integrated model, SWITCHChina, of the Chinese power sector with which to analyze the economic and technological implications of a medium to longterm decarbonization scenario while accounting for very-shortterm renewable variability. On the basis of the model and assumptions used, we find that the announced 2030 carbon peak can be achieved with a carbon price of ∼$40/tCO 2 . Current trends in renewable energy price reductions alone are insufficient to replace coal; however, an 80% carbon emission reduction by 2050 is achievable in the Intergovernmental Panel on Climate Change Target Scenario with an optimal electricity mix in 2050 including nuclear (14%), wind (23%), solar (27%), hydro (6%), gas (1%), coal (3%), and carbon capture and sequestration coal energy (26%). The co-benefits of carbon-price strategy would offset 22% to 42% of the increased electricity costs if the true cost of coal and the social cost of carbon are incorporated. In such a scenario, aggressive attention to research and both technological and financial innovation mechanisms are crucial to enabling the transition at a reasonable cost, along with strong carbon policies.

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“…However, more than 90 % of the generated energy world-wide is consumed and wasted thermally [2]. In 2010, the U.S. …”

Section: Motivationmentioning

confidence: 99%

“…The ATB aims to provide cooling and heating capacities of mass conservation, energy conservation, and adsorption dynamics, shown in Equations (1), (2), and (3), respectively.…”

Section: Description Of Systemmentioning

confidence: 99%

Experimental Characterization of Adsorption and Transport Properties for Advanced Thermo-Adsorptive Batteries

Kim

Yang

Narayanan

et al. 2013

Volume 8C: Heat Transfer and Thermal Engineering

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Thermal energy storage has received significant interest for delivering heating and cooling in both transportation and building sectors. It can minimize the use of on-board electric batteries for heating, ventilation and air-conditioning (HVAC) in electric vehicles (EVs) or reduce electricity consumption during peak demand in residential and commercial buildings. A compact and lightweight advanced thermo-adsorptive battery (ATB) is currently being developed to provide both heating and cooling. Additionally, if waste heat or solar energy were used to regenerate the ATB, the mechanical energy to run the cycle for vapor compression and transport, can be eliminated, thus, providing a significant benefit over conventional HVAC systems, especially when provision of electric energy is challenging.We present a detailed characterization of the thermophysical and transport properties of adsorptive materials for the development of the ATB. We discuss the feasibility of using contemporary adsorptive materials, such as zeolite 13X, by carrying out a detailed experimental and theoretical characterization. Enthalpy of desorption of zeolite 13X -water pair was characterized using the state of the art calorimetric technique. The experimental characterization 3 and theoretical modeling of commercially available zeolite 13X (Sigma Aldrich, molecular sieves, 13X, powder, -2 pm average size) combined with carbon nano-materials, such as functionalized multi-walled carbon nanotube and graphene, are carried out to improve the effective thermal conductivity. Furthermore, we carried out performance characterization of a single-layer adsorption stack for the development of the ATB. Consequently, this thesis can serve as a framework for the development and characterization of adsorption-based thermal storage systems.

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Searching for a Better Thermal Battery

Abstract: Improved materials for storing heat could save energy in applications such as heating and cooling and could enhance generation from solar thermal plants.

Cited by 277 publications

References 9 publications

N-Methylpyrrolidinium hydrogen tartrate (NMPHT): an above-room-temperature order–disorder molecular switchable dielectric material

N-Methylpyrrolidinium hydrogen tartrate (NMPHT): an above-room-temperature order–disorder molecular switchable dielectric material

SWITCH-China: A Systems Approach to Decarbonizing China’s Power System

Experimental Characterization of Adsorption and Transport Properties for Advanced Thermo-Adsorptive Batteries

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