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Study sees gradual, focused replacement of lead-acid SLI batteries by Li-ion batteries over next couple of years

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This energy sector is primarily driven by the need for low-cost with reasonably long cycle-life energy storage technology, for which the lead-acid battery is well suited. —Ferg et al. Schuldt, J. 2019.03.063.

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SJTU team develops self-healing binder for silicon microparticle anodes

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Si has been regarded as the most promising candidate for the next generation of Li-ion batteries (LIBs), because of its high theoretical capacity, abundant natural sources, and low electrochemical potential. negative electrode and can cycle reversibly under high areal capacities of 9 mAh/cm 2. 2018.02.012.

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Stanford, SLAC team cages silicon microparticles in graphene for stable, high-energy anode for Li-ion batteries

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The graphene cage acts as a mechanically strong and flexible buffer during deep cycling, allowing the silicon microparticles to expand and fracture within the cage while retaining electrical connectivity on both the particle and electrode level. —Yi Cui. Here we introduce a method to encapsulate Si microparticles (∼1–3 µm).

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Industry study finds lead-acid to remain most wide-spread automotive energy storage for foreseeable future; new chemistries continue to grow

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Their low cost and ability to start the engine at cold temperatures sets them apart in conventional and basic micro-hybrid vehicles, and as auxiliary batteries in all other automotive applications, according to the report. Resources. This is expected to be the situation for the foreseeable future, according to the report.

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New silicon-hydrogel composite Li-ion anode material shows long cycle life, easy manufacturability

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A g -1 , the composite electrode exhibited a relatively stable reversible lithium capacity of 1,600 mAh g -1 for 1,000 deep cycles based on the weight of only Si. The electrode can be continuously deep cycled up to 5,000 times without significant capacity decay. Click to enlarge. At a charge/discharge current of 1.0

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Graphene oxide-sulfur (GO-S) nanocomposite cathodes for high-capacity, stable cycling lithium sulfur batteries

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A team from Lawrence Berkeley National Laboratory and Tsinghua University (China) have synthesized graphene oxide-sulfur (GO-S) nanocomposite cathodes and applied them in lithium/sulfur cells to show a high reversible capacity of 950-1400 mAh g -1 and stable cycling for more than 50 deep cycles at 0.1C (1C = 1675 mA g -1 ).

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PNNL study outlines requirements for grid storage, reviews four electrochemical energy storage systems: vanadium redox flow, Na-beta, Li-ion and lead-carbon

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The future grid will face significant challenges by providing clean power from intermittent resources to a much more dynamic load. To smooth out the intermittency of renewable energy production, low-cost electrical energy storage (EES) will become necessary. Among the most important factors are capital cost and life-cycle cost.

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