One dimensional Si/Sn - based nanowires and nanotubes for lithium-ion energy storage materials

Choi, Nam‐Soon; Yao, Yan; Cui, Yi; Cho, Jaephil

doi:10.1039/c0jm03842c

Cited by 206 publications

(175 citation statements)

References 108 publications

(130 reference statements)

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“…However, the practical application of Si to LIBs is quite challenging because Si is associated with significant volume changes which arise during lithium insertion and extraction, which can hasten mechanical fracture of the electrode, cause a loss of electrical conduction paths, and results in continuous electrolyte decomposition at the active surface when exposed by the cracking of Si during cycling, as depicted in Fig. 1 [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…To suppress the volume changes of Si-based anodes, nanostructured anode materials [11,12], nanocomposites of anode materials, porous structures to mitigate the disintegration of Si particles due to colossal volume changes, and a proper electrode design to optimize structural factors such as the particle size, space between the particles, and polymeric binders have been explored to develop anodes that undergo less of a volume change [15,16]. In particular, attention has been devoted to the development of functional polymeric binders, as the polymer binder is a material that is very important for the binding of the Si-active materials of the electrodes.…”

Section: Introductionmentioning

confidence: 99%

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Recent Progress on Polymeric Binders for Silicon Anodes in Lithium-Ion Batteries

Choi

Lee

et al. 2015

Journal of Electrochemical Science and Technology

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Advanced polymeric binders with unique functions such as improvements in the electronic conduction network, mechanical adhesion, and mechanical durability during cycling have recently gained an increasing amount of attention as a promising means of creating high-performance silicon (Si) anodes in lithium-ion batteries with high energy density levels. In this review, we describe the key challenges of Si anodes, particularly highlighting the recent progress in the area of polymeric binders for Si anodes in cells.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Progress on Polymeric Binders for Silicon Anodes in Lithium-Ion Batteries

Choi

Lee

et al. 2015

Journal of Electrochemical Science and Technology

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“…Nevertheless, the synthesis processes are complicated, expensive, and difficult to industrialize. The other effective tactic to overcome the volume changes is by means of an active/conductive matrix to form a composite [21][22][23][24][25][26]. Therefore, incorporating silicon to optimize carbon anode is a feasible and desirable solution to realize the high energy density needed for some practical applications [27].…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity

Wang

Chou

Kim

et al. 2013

Electrochimica Acta

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Dou, S. Xue. (2013). Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity. Electrochimica Acta, 93 (March), 213-221.Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity AbstractFrom energy and environmental consideration, an industrial waste product, coal tar pitch (CTP), is used as the carbon source for Si/AC composite. We exploited a facile sintering method to largely scale up Si/ amorphous carbon nanocomposite. The composites with 20 wt.% silicon with PVdF binder exhibited stable lithium storage ability for prolonged cycling. The composite anode delivered a capacity of 400.3 mAh g−1 with a high capacity retention of 71.3% after 1000 cycles. Various methods are used to investigate the reason for the outstanding cyclability. The results indicate that the silicon nanoparticles are wrapped by amorphous SiOx and AC in Si/AC composite. This uniform structure is very favorable to lithium storage, the SiOx and AC layers can supply sufficient conductivity and strong elasticity to suppress the stress resulting from the reaction of Si with Li during charge/discharge process.

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“…The advent of nanotechnology and successful incorporation of nanostructured materials in energy storage devices has further grown an interest in revisiting Si as an active anode material. The enhancement in the electrochemical performance of nanostructured Si anodes provides novel platforms for the ubiquitous presence of Si in Li-ion batteries (2)(3)(4). Through nanostructuring, the active Si pulverization was minimized yielding stable capacity retention.…”

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confidence: 99%

Roll up nanowire battery from silicon chips

Vlad

Reddy

Ajayan

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

123

106

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Here we report an approach to roll out Li-ion battery components from silicon chips by a continuous and repeatable etch-infiltratepeel cycle. Vertically aligned silicon nanowires etched from recycled silicon wafers are captured in a polymer matrix that operates as Li þ gel-electrolyte and electrode separator and peeled off to make multiple battery devices out of a single wafer. Porous, electrically interconnected copper nanoshells are conformally deposited around the silicon nanowires to stabilize the electrodes over extended cycles and provide efficient current collection. Using the above developed process we demonstrate an operational full cell 3.4 V lithium-polymer silicon nanowire (LIPOSIL) battery which is mechanically flexible and scalable to large dimensions.polymer electrolyte | core-shell nanowires | energy storage | flexible electronics | waste management S ilicon is a promising anode material in lithium batteries due to its high specific capacity and low operation voltage (1). However, the major concern in using Si-based anodes is the huge volume expansion during the lithiation that leads to a fast degradation of the electrode material and a reduced life cycle of the battery with limited use in real life Li-ion applications. The advent of nanotechnology and successful incorporation of nanostructured materials in energy storage devices has further grown an interest in revisiting Si as an active anode material. The enhancement in the electrochemical performance of nanostructured Si anodes provides novel platforms for the ubiquitous presence of Si in Li-ion batteries (2-4). Through nanostructuring, the active Si pulverization was minimized yielding stable capacity retention. However, this was found insufficient to maintain a uniform electrical interface and adequate mechanical contact between the active Si particles and the conductive additives, calling for the development of new binder materials (5-7). Avoiding binders or conductive additives and enabling a direct contact between Si and the current collector is the other way to maintain the electrical conductivity and mechanical integrity of the electrode. This requires special designs of the current collector complying with the ensuing active material deposition. The optimal alternative so far is provided by the use of nanowires, nanotubes, or hierarchical assemblies directly grown, assembled, or bonded onto the current collector (8-12).Current collectors integrated with Si anodes have been successfully fabricated through chemical or physical vapor deposition methods, room temperature metal assisted chemical etching (MACE), as well as through various top-down methods (8,9,(12)(13)(14)(15). One of the major drawbacks of the respective configurations is the relatively low tap density of the Si nanostructures leading to low mass loading of active material and low volumetric capacities. Moreover, excess of current collector is usually employed in this configuration rendering them less attractive for high-throughput battery manufacturing (16). Low compactio...

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One dimensional Si/Sn - based nanowires and nanotubes for lithium-ion energy storage materials

Cited by 206 publications

References 108 publications

Recent Progress on Polymeric Binders for Silicon Anodes in Lithium-Ion Batteries

Recent Progress on Polymeric Binders for Silicon Anodes in Lithium-Ion Batteries

Nanocomposites of silicon and carbon derived from coal tar pitch: Cheap anode materials for lithium-ion batteries with long cycle life and enhanced capacity

Roll up nanowire battery from silicon chips

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