SiOx-based anodes for secondary lithium batteries

Yang, Jingshuai; Takeda, Yasuo; Imanishi, Nobuyuki; Capiglia, Claudio; Xie, Jian; Yamamoto, Osamu

doi:10.1016/s0167-2738(02)00362-4

Cited by 306 publications

(178 citation statements)

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“…The Si/SiO x electrode exhibited a similar potential prole to those of reported SiO and SiO x electrodes in the rst lithium insertion and extraction. 33,34 Generally, the high irreversible capacity could be explained by the formation of nanosilicon and Li 2 O. Then, the nanosilicon reacts with Li to form Li-Si alloy.…”

Section: Resultsmentioning

confidence: 99%

Two-step ball-milling synthesis of a Si/SiO_x/C composite electrode for lithium ion batteries with excellent long-term cycling stability

et al. 2017

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a SiO x -based anodes have attracted tremendous attention owing to their low cost, higher theoretical capacity than graphite and lower volume expansion than pure silicon. In this work, a simple and cost-effective two-step ball-milling method was proposed to fabricate Si/SiO x /C composites by using commercial SiO and graphite carbon as raw materials. The two-step ball-milling synthesis of the Si/SiO x /C composites can avoid the generation of an inert SiC phase and realize the uniform dispersion of Si/SiO x in graphite carbon, which offers good electrical conductivity and relieves the volume expansion of the Si/SiO x phase. Owing to the synergistic effect of the Si/SiO x phase and the graphite carbon, the typical Si/SiO x /C electrode exhibits a stable and high capacity of 726 mA h g À1 after 500 cycles at a current density of 0.1 A g À1 with a capacity retention of 82%. The two-step ball-milling preparation of the Si/SiO x /C composite provides a facile approach to fabricate high-performance SiO x -based anode materials.

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Section: Resultsmentioning

confidence: 99%

Two-step ball-milling synthesis of a Si/SiO_x/C composite electrode for lithium ion batteries with excellent long-term cycling stability

et al. 2017

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“…This amorphous SiO 2 phase in the outer wing could gradually interrupt the lithium ions movement and electron transport during cycles. Therefore, the formation of Li-Si alloy is hindered, leading to a fast capacity fading and a poor cycle life [28]. The EELS studies at the high C-rate also confirm that the lithiated SiNWs are composed of a crystalline Si core and an amorphous lithiated Si.…”

Section: Resultsmentioning

confidence: 82%

Microstructural characterization of Li insertion in individual silicon nanowires

2014

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The lithiation and delithiation process of silicon nanowire arrays (SiNWs) on silicon substrates has been studied with high-resolution electron microscopy. The composition of lithiated SiNWs was revealed, consisting of the unreacted crystalline silicon core and the reacted amorphous Li-Si shell. In particular, the Li-Si shell was comprised of a mixture of amorphous silicon oxide and crystalline silicon, leading to hindrance during Li-Si alloying/dealloying upon cycling

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“…Nano-structured Si (Si nano-wire, meso-porous Si, Si nano particles, etc. ), [26] Si-C composites (or silicon-M-carbon composites, M: active or inactive matrix), [27] Si-polymer composites [28] and SiO x (0x2) [29] were proposed to achieve mechanical stability and better electrical conductivity of the electrode which lead to improvement of the electrochemical performance of the Si electrode.…”

Section: Alloy Based Anodesmentioning

confidence: 99%

Li‐Ion Batteries and Beyond: Future Design Challenges

Hwa

Cairns

2015

Encyclopedia of Inorganic and Bioinorganic Chemistry

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Light metals have been widely used as electrode materials for batteries owing to their low standard redox potential, their low equivalent weight, large specific capacity, and great abundance. Both primary and secondary cells including light metals as electrode material have influenced all aspects of our lives, e.g., electrically operated toys, power tools, and portable electronics such as cell phones, smart pads, and laptop computers. Among all battery systems, rechargeable lithium (Li) ion cells have been used most widely in recent years owing to their high specific power, high energy density, and ambient temperature operation. However, Li‐ion cells are facing difficult challenges in satisfying the emerging market for advanced applications demanding high‐performance rechargeable batteries for applications such as electric vehicles, high‐performance portable electronics, and large‐scale electrical energy storage systems. Unfortunately, current Li‐ion cells cannot satisfy demands such as low cost, much improved safety, larger energy density, faster charge/discharge rates, and longer service life, so intensive effort is necessary to develop the next generation of cells. In this article, the limitations of current Li‐ion cells and various advanced materials for each component of the Li‐ion cell, in addition to other promising candidates for cells beyond Li ion, such as the Li/S cell and Na‐ and Mg‐based rechargeable cells, and metal/air cells are discussed.

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SiOx-based anodes for secondary lithium batteries

Cited by 306 publications

References 5 publications

Two-step ball-milling synthesis of a Si/SiO_x/C composite electrode for lithium ion batteries with excellent long-term cycling stability

Two-step ball-milling synthesis of a Si/SiO_x/C composite electrode for lithium ion batteries with excellent long-term cycling stability

Microstructural characterization of Li insertion in individual silicon nanowires

Li‐Ion Batteries and Beyond: Future Design Challenges

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SiOx-based anodes for secondary lithium batteries

Cited by 306 publications

References 5 publications

Two-step ball-milling synthesis of a Si/SiOx/C composite electrode for lithium ion batteries with excellent long-term cycling stability

Two-step ball-milling synthesis of a Si/SiOx/C composite electrode for lithium ion batteries with excellent long-term cycling stability

Microstructural characterization of Li insertion in individual silicon nanowires

Li‐Ion Batteries and Beyond: Future Design Challenges

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Two-step ball-milling synthesis of a Si/SiO_x/C composite electrode for lithium ion batteries with excellent long-term cycling stability

Two-step ball-milling synthesis of a Si/SiO_x/C composite electrode for lithium ion batteries with excellent long-term cycling stability