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ANL researchers report photo-excitation can speed up Li-ion charging by factor of two

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Researchers at the US Department of Energy’s (DOE) Argonne National Laboratory have reported that a new photo-excitation mechanism can speed up the charging of lithium-ion batteries by a factor of two or more. A serious limitation [of lithium-ion batteries], however, is the slow charging rate used to obtain the full capacity.

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New aqueous rechargeable lithium battery shows good safety, high reliability, high energy density and low cost; another post Li-ion alternative

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Schematic illustration of the aqueous rechargeable lithium battery (ARLB) using the coated lithium metal as anode, LiMn 2 O 4 as cathode and 0.5 mol l -1 Li 2 SO 4 aqueous solution as electrolyte. Combining with the coated lithium metal as anode, LiMn 2 O 4 as cathode and 0.5 Wang et al. Click to enlarge.

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Kyoto team develops new cathode material for high-energy-density rechargeable magnesium batteries

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Charge–discharge profiles of ion-exchanged MgFeSiO 4. A team of researchers from Kyoto University has demonstrated ion-exchanged MgFeSiO 4 as a feasible cathode material for use in high-energy-density rechargeable magnesium batteries. The ion-exchanged MgFeSiO 4 cathode materials provide a capacity of more than 300 mAh·g ?

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Ningbo researchers propose mixed-ion Li/Na batteries

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Schematics of Li + /Na + mixed-ion battery. Lithium-intercalation compounds and sodium-intercalation compounds are used for anode and cathode, respectively. During charging (or discharging), the storage (or release) of Li + takes place at anode, and the release (or storage) of Na + occurs at cathode. Chen et al.

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Li-ion sulfur polymer battery shows high energy density as well as safety

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A team from the University of Rome Sapienza has developed a rechargeable lithium-ion polymer battery based on the combination of a high capacity sulfur-carbon cathode, nanostructured Li x Sn-C anode and polysulfide-added PEO-based gel membrane. Moreover, the addition of a dissolved polysulfide (i.e.

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RPI researchers develop safe, long-cycling Li-metal rechargeable battery electrode; demonstrate Li-carbon battery

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Capacity and coulombic efficiency versus cycle index of Li-PGN cathodes at a rate of ~1C. O 2 and Li 3 V 1.98 Researchers at Rensselaer Polytechnic Institute have developed a safe, extended cycling lithium-metal electrode for rechargeable Li-ion batteries by entrapping lithium metal within a porous graphene network (Li-PGN).

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U. Alberta team developing new high power and energy lithium-carbon battery system using induced fluorination; dual storage mechanism

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Ragone plot, comparing Li-CNT-F batteries with other batteries in terms of weight of cathode materials. The highest energy density for Li-CNT-F batteries, 4,113 Wh kg carbon ?1 Their system is based on a lithium-carbon battery configuration, but with a different approach. 1 is presented as a red star. Click to enlarge.

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