MoSx surface-modified, hybrid core-shell structured LiFePO4 cathode for superior Li-ion battery applications

Hu, Lung-Hao

doi:10.1016/j.jallcom.2021.159718

Cited by 14 publications

(10 citation statements)

References 44 publications

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“…CuCl 2 /Li exhibits a restrained overpotential of 0.23 V at 10 C and a small one of 0.07 V at 0.5 C. Excellent rate capability is better than many works that use LFP as the positive electrode. [4,[35][36][37] To evaluate the constancy of CuCl 2 /Li, the Coulombic efficiency measurements of CuCl 2 /Li and bare Li paired with copper collector were carried out (Figure 6e and Figure S11g,h, Supporting Information). Average Coulombic efficiency of CuCl 2 /Li can reach 98.8% over 300 cycles at a current density of 0.5 mA cm −2 , while the bare Li only delivers 93.3% due to the short circuit at the end of the test.…”

Section: Resultsmentioning

confidence: 99%

CuCl₂‐Modified Lithium Metal Anode via Dynamic Protection Mechanisms for Dendrite‐Free Long‐Life Charging/Discharge Processes

Qian

Xing

Zheng

et al. 2022

Advanced Energy Materials

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Since the commercialization of lithiumion batteries (LIBs) in 1990s, as the most successful anode material, graphite has reached its theoretical specific capacity of 372 mAh g −1 . [3] To fulfill the rapidgrowing demands for high energy density and power density, lithium metal with an extremely high theoretical capacity of 3861 mAh g −1 and the lowest electrode potential (−3.04 V vs standard hydrogen electrode) has been expected to substitute the traditional anode material for nextgeneration Li-based battery technologies such as lithium-air batteries, lithiumsulfur batteries, and all-solid-state lithium batteries. [4][5][6] However, the practical utilization of the lithium metal anode is significantly hindered by the safety issue arising from the growth of lithium dendrites in charge/discharge processes.Dendrite-free charging via controllable Li deposition could be ideal for overcoming this inherent barrier for the commercial-scale application of the Li metal anode. With the in-depth understanding of the formation mechanism of lithium dendrites in recent years, various strategies such as the formation of lithium alloys, [7][8][9] the design of three-dimensional current collectors, [10,11] the utilization of lithiophilic matrix to guide lithium deposition, [12][13][14] the formation of artificial solid electrolyte interphase (SEI), [15][16][17][18] the addition of electrolyte additives [19,20] and solid electrolytes have been proposed. However, the use of expensive raw materials such as transition metal-containing inorganic salts or precious metals could undoubtedly increase the production cost. Moreover, sophisticated strategies such as electrospinning and template synthesis methods demands complicated instrumentation and time-consuming fabrication process to construct lithium metal protection layer, which is not economically viable. To this end, the construction of dendrite-free, controllable Li deposition via a simple and cost-effective remains challenging and highly desirable for Li-based batteries. It is established that LiF, as an important component in SEI, is beneficial for the homogeneous deposition of lithium ions. [21] Analogous to LiF, other lithium salts including halides (e.g., chlorides, iodides and bromides) are also favorable to establish stable SEI layers in Lithium metal is considered as an ideal substitute to low-capacity carbon anodes for rechargeable lithium-ion batteries (LIBs) given its ultra-high theoretical specific capacity of 3860 mAh g −1 and the lowest electrochemical potential. However, safety issues stem from the uncontrollable formation and growth of lithium dendrites, which severely plague the practical application of the Li anode. Here, a multi-functional protection layer, prepared by a one-step spincoating of CuCl 2 N-Methyl-2-Pyrrolidone (NMP) solution on a lithium metal surface is constructed. The as-prepared protective layer has a variable porous morphology that consists of a conductive lithium-copper alloy and electrochemically active CuCl, which proactively facilitates the ...

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Section: Resultsmentioning

confidence: 99%

CuCl₂‐Modified Lithium Metal Anode via Dynamic Protection Mechanisms for Dendrite‐Free Long‐Life Charging/Discharge Processes

Qian

Xing

Zheng

et al. 2022

Advanced Energy Materials

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“…Nevertheless, it should also be noted that carbon or Fe2P coating can significantly increase the conductivity. [50][51][52] Generally, cathodes of high voltage are preferable for use because stored energy and the operating voltage of the cell are directly proportional to each other. There are plenty of materials that have been analysed to be used as cathode materials in LIBs; nonetheless, the stability of the electrolyte should be considered in the selection of cathode materials of high voltage.…”

Section: Cathode Materialsmentioning

confidence: 99%

An overview of the application of atomic layer deposition process for lithium‐ion based batteries

Nwanna

Bitire

Imoisili

et al. 2022

Intl J of Energy Research

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Lithium-ion battery (LIB) systems provide a very promising range of power supply systems for diverse applications like electric vehicles, hybrid plug-in electric vehicles, grid storage systems, and microelectronics. Nevertheless, the features of lithium-ion batteries (LIBs), which include energy density and power, cycle lifetime, safety, as well as cost, must be enhanced in order to achieve all these feasible applications. Atomic layer deposition (ALD), as a result of its unique benefits above other thin-film methods of deposition, emerges as a very useful approach for use in improving the efficiency of LIBs. This review summarizes ALD's advanced successes in designing new nanostructured solid-state electrolytes and electrode materials, as well as the adjustment of the interfaces of electrodes and electrolytes through the application of surface coatings for the avoidance of undesirable side reactions to attain maximum adequate performance of the electrode. Also covered are ideas for the potential advancement of ALD studies and technology for the applications of LIBs. This review paper is anticipated to furnish researchers within the LIB and ALD fields with valuable information that would encourage much more extensive research on the use of ALD to produce new generation LIBs.Novelty Statement: This review presents the recent advancements in electrode materials as well as some new electrode fabrication processes for Li-ion batteries. Certain prospective materials with improved electrochemical performance have also been reported, along with a review of the recent precursors utilized for the ALD of battery materials. The efficiency of the ALD process in providing sufficient solutions to the problems associated with the utilization of Lithium-ion batteries is also discussed.

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“…As a result, capacity is constantly reduced during work cycles. It is necessary to say this, because tests are often performed on lithium metal, voltages relative to lithium are measured in all battery articles [ 69 ]. In silicon nanomaterials, because of the higher chemical activity, it is even more susceptible to the formation of SEI.…”

Section: Sei Problem In Siliconmentioning

confidence: 99%

“…7, the tin capacity is less than the theoretical capacity (900 mAh/g) due to the presence of carbon, but has a good cycle life. Maintains well up to 1000 working cycles [52,[67][68][69][70].…”

Section: Different Nano Morphologiesmentioning

confidence: 99%

“…It is necessary to say this, because tests are often performed on lithium metal, voltages relative to lithium are measured in all Fig. 10 Schematic of SEI formation and composition of this layer [66] battery articles [69]. In silicon nanomaterials, because of the higher chemical activity, it is even more susceptible to the formation of SEI.…”

Section: Sei Problem In Siliconmentioning

confidence: 99%

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Nano and Battery Anode: A Review

Majdi¹,

Latipov

Борисов

et al. 2021

Nanoscale Res Lett

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Improving the anode properties, including increasing its capacity, is one of the basic necessities to improve battery performance. In this paper, high-capacity anodes with alloy performance are introduced, then the problem of fragmentation of these anodes and its effect during the cyclic life is stated. Then, the effect of reducing the size to the nanoscale in solving the problem of fragmentation and improving the properties is discussed, and finally the various forms of nanomaterials are examined. In this paper, electrode reduction in the anode, which is a nanoscale phenomenon, is described. The negative effects of this phenomenon on alloy anodes are expressed and how to eliminate these negative effects by preparing suitable nanostructures will be discussed. Also, the anodes of the titanium oxide family are introduced and the effects of Nano on the performance improvement of these anodes are expressed, and finally, the quasi-capacitive behavior, which is specific to Nano, will be introduced. Finally, the third type of anodes, exchange anodes, is introduced and their function is expressed. The effect of Nano on the reversibility of these anodes is mentioned. The advantages of nanotechnology for these electrodes are described. In this paper, it is found that nanotechnology, in addition to the common effects such as reducing the penetration distance and modulating the stress, also creates other interesting effects in this type of anode, such as capacitive quasi-capacitance, changing storage mechanism and lower volume change.

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MoSx surface-modified, hybrid core-shell structured LiFePO4 cathode for superior Li-ion battery applications

Cited by 14 publications

References 44 publications

CuCl₂‐Modified Lithium Metal Anode via Dynamic Protection Mechanisms for Dendrite‐Free Long‐Life Charging/Discharge Processes

CuCl₂‐Modified Lithium Metal Anode via Dynamic Protection Mechanisms for Dendrite‐Free Long‐Life Charging/Discharge Processes

An overview of the application of atomic layer deposition process for lithium‐ion based batteries

Nano and Battery Anode: A Review

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MoSx surface-modified, hybrid core-shell structured LiFePO4 cathode for superior Li-ion battery applications

Cited by 14 publications

References 44 publications

CuCl2‐Modified Lithium Metal Anode via Dynamic Protection Mechanisms for Dendrite‐Free Long‐Life Charging/Discharge Processes

CuCl2‐Modified Lithium Metal Anode via Dynamic Protection Mechanisms for Dendrite‐Free Long‐Life Charging/Discharge Processes

An overview of the application of atomic layer deposition process for lithium‐ion based batteries

Nano and Battery Anode: A Review

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Product

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CuCl₂‐Modified Lithium Metal Anode via Dynamic Protection Mechanisms for Dendrite‐Free Long‐Life Charging/Discharge Processes

CuCl₂‐Modified Lithium Metal Anode via Dynamic Protection Mechanisms for Dendrite‐Free Long‐Life Charging/Discharge Processes