Preparation of a N-doped Si/Cu/C anode for high-performance lithium-ion batteries

Xiang, Xin; Pan, Piao; Li, Peidong; Tu, Qiang; Cui, Yuehua

doi:10.1039/d2se01507b

Cited by 5 publications

(1 citation statement)

References 53 publications

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“…These voids shown in BET test (figure S2) are not activated at the beginning of cycling, and they are gradually activated during the continuous cycling process. This process can also be seen in other references [44][45][46]. At 200 mA g −1 , the cycle performances of Si/BPC composites in various B and P doping levels are also listed in figure S4.…”

Section: Resultssupporting

confidence: 72%

Novel binary regulated silicon-carbon materials as high-performance anodes for lithium-ion batteries

He,

Xiang,

Pan

et al. 2024

Nanotechnology

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The massive volume dilation, unsteady solid electrolyte interphase, and weak conductivity about Si have failed to bring it to practical applications, although its potential capacity is up to 4200 mAh g-1. For solving these problems, novel binary regulated silicon-carbon materials (Si/BPC) were done by a sol-gel procedure combined with single carbonization. Analytical techniques were systematically utilized to examine the effects of element doping at several gradients on morphology, structure and electrochemical properties of composites, thus the optimal content was identified. Si/BPC preserves a discharge specific capacity of 1021.6 mAh g-1 with a coulomb efficiency of 99.27% after 180 cycles at 1000 mA g-1, within the upgrade than single-doped and undoped. In rate test, it has a specific capacity of 1003.2 mAh g-1 at a high current density of 5000 mA g-1, quickly back towards 2838.6 mAh g-1 at 200 mA g-1. The inclusion of B and P elements is linked to the electrochemical characteristics. In the co-doped carbon layers, the synergistic impact of doping B and P accelerates the diffusion kinetics of lithium ions, boosts diffusion rate of Li+, offers low electrochemical impedance (45.75 Ω). This brings more defects to provide transport carriers and induces a substantial amount of electrochemically active sites, which fosters the storage of Li+, thus making silicon material electrochemically more active and potential.

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Section: Resultssupporting

confidence: 72%

Novel binary regulated silicon-carbon materials as high-performance anodes for lithium-ion batteries

He,

Xiang,

Pan

et al. 2024

Nanotechnology

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Lithium Ion Batteries: Characteristics, Recycling and Deep‐Sea Mining

Devanahalli Bokkassam,

Nambi Krishnan

2024

Battery Energy

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Lithium ion batteries (LIBs) have brought about a revolution in the electronics industry and are now almost a part of our everyday activities. They are on the verge of finding application in almost every electronic rechargeable device and have a bright future ahead. With the recent discovery of substantial reserves of lithium in India, along with the favourable government policies for the usage of electric vehicles (EVs), LIBs are expected to play a major role in meeting sustainable energy goals. Though LIBs have become a commercial success, they face many challenges, such as high cost of production, thermal runaway and overcharging, that might hamper their extensive use. Many research studies have been conducted regarding the operation of LIB, with safety being a concern. With rapid technology development, going nanoscale for LIB production has become achievable and valuable as it has been reported to increase the shelf life of the battery. In this review, recycling of spent LIBs is discussed, as the extraction of the leftover lithium and other minerals is possible through recycling process. The advantages and drawbacks of deep‐sea lithium mining have been discussed, as it is explored as an alternative to major lithium sources due to the rapid depletion of land mining sources. Its impact on the environment and the mineral market has been assessed. This review paper attempts to give an overview of all the vital characteristics of an LIB, such as life cycle, fast charging and overcharging, while covering strategies for overcoming challenges faced in the functioning of LIBs.

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Co3O4 nanosheets anchored on C/Cu porous microspheres as high-performance anode materials for lithium-ion battery

Sun,

Zhang,

Zhang

et al. 2023

Sci. China Mater.

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Preparation of a N-doped Si/Cu/C anode for high-performance lithium-ion batteries

Abstract: Silicon with high theoretical specific capacity is one of the most promising candidates for lithium-ion battery anode materials. However, due to its low electrical conductivity, large volume expansion and unstable...

Cited by 5 publications

References 53 publications

Novel binary regulated silicon-carbon materials as high-performance anodes for lithium-ion batteries

Novel binary regulated silicon-carbon materials as high-performance anodes for lithium-ion batteries

Lithium Ion Batteries: Characteristics, Recycling and Deep‐Sea Mining

Co3O4 nanosheets anchored on C/Cu porous microspheres as high-performance anode materials for lithium-ion battery

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