Long cycle life, low self-discharge carbon anode for Li-ion batteries with pores and dual-doping

Wu, Pengfei; Shao, Guifang; Guo, Chaozhong; Lü, Ying; Dong, Xichao; Zhong, Yue; Liu, Anhua

doi:10.1016/j.jallcom.2019.06.233

Cited by 25 publications

(15 citation statements)

References 42 publications

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“…Porous carbon materials can improve the performance of carbon-based LiBs. Wu et al [365] used fermented flour to prepare biomass porous and double-doped carbon materials to be used as an anode in LiB. The experimental result confirms of low voltage discharge rate and better cycling performance of LiBs.…”

Section: ) Low Self-discharge Carbon Anodementioning

confidence: 97%

Power Consumption Analysis, Measurement, Management, and Issues: A State-of-the-Art Review of Smartphone Battery and Energy Usage

et al. 2019

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The advancement and popularity of smartphones have made it an essential and all-purpose device. But lack of advancement in battery technology has held back its optimum potential. Therefore, considering its scarcity, optimal use and efficient management of energy are crucial in a smartphone. For that, a fair understanding of a smartphone's energy consumption factors is necessary for both users and device manufacturers, along with other stakeholders in the smartphone ecosystem. It is important to assess how much of the device's energy is consumed by which components and under what circumstances. This paper provides a generalized, but detailed analysis of the power consumption causes (internal and external) of a smartphone and also offers suggestive measures to minimize the consumption for each factor. The main contribution of this paper is four comprehensive literature reviews on: 1) smartphone's power consumption assessment and estimation (including power consumption analysis and modelling); 2) power consumption management for smartphones (including energy-saving methods and techniques); 3) state-of-the-art of the research and commercial developments of smartphone batteries (including alternative power sources); and 4) mitigating the hazardous issues of smartphones' batteries (with a details explanation of the issues). The research works are further subcategorized based on different research and solution approaches. A good number of recent empirical research works are considered for this comprehensive review, and each of them is succinctly analysed and discussed.

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Section: ) Low Self-discharge Carbon Anodementioning

confidence: 97%

Power Consumption Analysis, Measurement, Management, and Issues: A State-of-the-Art Review of Smartphone Battery and Energy Usage

et al. 2019

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“…Therefore, the barrier effect on polysulfide will help to reduce the self‐discharge rate. Presently, the self‐discharge rate of lithium‐sulfur batteries is still much higher than that of lithium‐ion batteries (capacity retention rate is 94.1% after 2 months' resting). To achieve a commercial lithium‐sulfur battery, more research work should be conducted on the battery structures and materials, especially on the separators.…”

Section: Separators For Self‐discharge Suppressionmentioning

confidence: 99%

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Wei

Ren

Sokolowski

et al. 2020

InfoMat

255

147

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The lithium-sulfur battery is considered one of the most promising candidates for portable energy storage devices due to its low cost and high energy density.However, many critical issues, including polysulfide shuttling, self-discharge, lithium dendritic growth, and thermal hazards need to be addressed before the commercialization of lithium-sulfur batteries. To this end, tremendous efforts have been made to explore battery configurations and components, such as electrodes, electrolytes, and separators, among which the separator plays an especially critical role in addressing aforementioned issues. Thus, this review analyzes the mechanisms and interactions of these critical issues and summarizes both the function of separators and recent progress made towards remedying such issues. Additionally, promising directions for the development of separators in lithium-sulfur batteries are proposed. K E Y W O R D Slithium dendrite, lithium-sulfur batteries, self-discharge, separator, shuttle effect, thermal hazardsThe first two authors contributed equally to this work.

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“…Widely used commercial graphite anode has excellent cycling stability and safety, as well as the potential advantage closest to the lithium metal; however, the specific capacity is only 372 mAh g –1 , it is hard to meet the needs of high energy density lithium‐ion batteries. Studies in recent years have shown that biomass carbon materials [ 7–12 ] and new carbon materials [ 13–15 ] have high specific capacity, but their further development is hindered by their low initial Coulombic efficiency, poor cycling stability and cost. The lithium metal anode known as the “Holy Grail” suffers from the dendritic or granular morphology and some researchers suggest that inhibiting lithium dendrite is not enough to ensure the commercialization and more attention should be paid to the role and mechanism of lithium microstructure.…”

Section: Introductionmentioning

confidence: 99%

The influence of contact engineering on silicon‐based anode for li‐ion batteries

Chen

Liu

2020

Nano Select

Self Cite

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Silicon is considered as the desirable anode material for lithium‐ion batteries due to its suitable discharge potential, abundant reserve, and ultra‐high specific capacity. However, poor conductivity and unstable battery performance caused by large volume change during cycling limit the further development of silicon anode. In order to avoid the unstable solid electrolyte interface layer caused by the direct contact between silicon and electrolyte, and to eliminate the structural collapse caused by the volume change during cycling, dimension size reduction, reserved voids, and novel structural framework are usually adopted. Although these methods can effectively improve the defects, a new problem is introduced and cannot be ignored: contact engineering between the coating layer and silicon core. Herein, contact engineering is classified into three categories: face to face (F2F), line to line (L2L), and point to point (P2P) according to the contact modes between the coating and core. There is utilizability of the structure categories of different contact modes and their influence on electrochemical performance. Therefore, in the future research of silicon anode, contact engineering is a non‐negligible aspect in the structural design process. Finally, feasible strategies based on contact engineering have been indicated.

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Long cycle life, low self-discharge carbon anode for Li-ion batteries with pores and dual-doping

Cited by 25 publications

References 42 publications

Power Consumption Analysis, Measurement, Management, and Issues: A State-of-the-Art Review of Smartphone Battery and Energy Usage

Power Consumption Analysis, Measurement, Management, and Issues: A State-of-the-Art Review of Smartphone Battery and Energy Usage

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

The influence of contact engineering on silicon‐based anode for li‐ion batteries

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