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Researchers develop rechargeable hybrid-seawater fuel cell; highly energy density, stable cycling

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The circulating seawater in the open-cathode system results in a continuous supply of sodium ions, endowing the system with superior cycling stability that allows the application of various alternative anodes to sodium metal by compensating for irreversible charge losses. an alloying material), in full sodium-ion configuration.

Recharge 285
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Univ. of Texas researchers propose lithium- or sodium-water batteries as next generation of high-capacity battery technology; applicable for EVs and grid storage

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Example of a lithium-water rechargeable battery. Researchers at the University of Texas, including Dr. John Goodenough, are proposing a strategy for high-capacity next-generation alkali (lithium or sodium)-ion batteries using water-soluble redox couples as the cathode. The present sodium-sulfur battery operates above 300 °C.

Sodium 218
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New high-performance Na-ion battery with SO2-based catholyte; potential for other non-Li-metal-based battery systems

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Researchers in South Korea have demonstrated new type of room-temperature and high-energy density sodium rechargeable battery using a sulfur dioxide (SO 2 )-based inorganic molten complex catholyte that serves as both a Na + -conducting medium and cathode material (i.e. catholyte). mA cm −2 ). —Jeong et al. mA cm −2 ).

Li-ion 150
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Purdue researchers convert packing peanuts into anode materials for Li-ion batteries; outperforming graphite

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Purdue researchers have developed a process to manufacture carbon-nanoparticle and microsheet anodes for Li-ion batteries from polystyrene and starch-based packing peanuts, respectively. These carbonaceous electrodes could also be used for rechargeable sodium-ion batteries.

Li-ion 150
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Researchers demonstrate concept desalination battery

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A team from Stanford University and Ruhr-Universität Bochum have demonstrated the novel concept of a “desalination battery” that uses an electrical energy input to extract sodium and chloride ions from seawater and to generate fresh water. Wh l –1 ), the most efficient technique presently available. Click to enlarge.

Concept 246
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New high performance Janus electrode for rechargeable Na-S batteries

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containing both cathode and anode properties in the same body—for sodium-sulfur (Na-S) batteries by adopting a metal-organic framework (MOF) to incorporate single Yttrium atoms in a nitrogen-doped rhombododecahedron carbon host (Y SAs/NC). Researchers in China have designed a high-performance Janus electrode—i.e.,

Recharge 259
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Researchers Develop Lithium-Water Electrochemical Cell for the Controlled Generation of H2 and Electricity

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Although direct chemical reactions between water and certain metals—alkali metals including lithium, sodium and others—can produce a large amount of hydrogen in a short time, these reactions are too intense to be controlled. the high-school chemistry demonstration of the violent reaction between sodium and water.).

Water 186