Progress of Li4Ti5O12anode material for lithium ion batteries

Lin, Xiaoting; Pan, Fei; Wang, H.

doi:10.1179/1753555714y.0000000170

Cited by 16 publications

(3 citation statements)

References 45 publications

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“…To increase charging rate, strain-free lithium titanate is often considered as an anode since it possesses outstanding high power density compared with other electrochemical systems. A review of recent advances in lithium titanates is presented by Lin et al 4 Another type of anode to be considered is C/Sn alloyed anodes, which have been studied for a long period. 5 This material doubles the capacity of graphite with reasonable electrode potential levels.…”

Section: Functional Materials For Electrochemical Energy Storagementioning

confidence: 99%

Functional materials for electrochemical energy storage

2014

Materials Technology

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Section: Functional Materials For Electrochemical Energy Storagementioning

confidence: 99%

Functional materials for electrochemical energy storage

2014

Materials Technology

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“…Novel synthesis methods are also used to control the particle size (see Refs. [ 38 , 39 , 40 , 41 , 42 ]). In this work, we examine the different techniques performed to fabricate LTO nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Li4Ti5O12 (LTO) as Anode Material for Li-Ion Batteries

Julien,

Mauger

2024

Micromachines

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The most popular anode material in commercial Li-ion batteries is still graphite. However, its low intercalation potential is close to that of lithium, which results in the dendritic growth of lithium at its surface, and the formation of a passivation film that limits the rate capability and may result in safety hazards. High-performance anodes are thus needed. In this context, lithium titanite oxide (LTO) has attracted attention as this anode material has important advantages. Due to its higher lithium intercalation potential (1.55 V vs. Li+/Li), the dendritic deposition of lithium is avoided, and the safety is increased. In addition, LTO is a zero-strain material, as the volume change upon lithiation-delithiation is negligible, which increases the cycle life of the battery. Finally, the diffusion coefficient of Li+ in LTO (2 × 10−8 cm2 s−1) is larger than in graphite, which, added to the fact that the dendritic effect is avoided, increases importantly the rate capability. The LTO anode has two drawbacks. The energy density of the cells equipped with LTO anode is lower compared with the same cells with graphite anode, because the capacity of LTO is limited to 175 mAh g−1, and because of the higher redox potential. The main drawback, however, is the low electrical conductivity (10−13 S cm−1) and ionic conductivity (10−13–10−9 cm2 s−1). Different strategies have been used to address this drawback: nano-structuration of LTO to reduce the path of Li+ ions and electrons inside LTO, ion doping, and incorporation of conductive nanomaterials. The synthesis of LTO with the appropriate structure and the optimized doping and the synthesis of composites incorporating conductive materials is thus the key to achieving high-rate capability. That is why a variety of synthesis recipes have been published on the LTO-based anodes. The progress in the synthesis of LTO-based anodes in recent years is such that LTO is now considered a substitute for graphite in lithium-ion batteries for many applications, including electric cars and energy storage to solve intermittence problems of wind mills and photovoltaic plants. In this review, we examine the different techniques performed to fabricate LTO nanostructures. Details of the synthesis recipes and their relation to electrochemical performance are reported, allowing the extraction of the most powerful synthesis processes in relation to the recent experimental results.

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“…However, LIBs still have issues with long‐term stability and safety. Additionally, LIBs with higher power and faster charge/discharge abilities are desired …”

Section: Introductionmentioning

confidence: 99%

Wet‐chemistry synthesis of Li₄Ti₅O₁₂as anode materials rendering high‐rate Li‐ion storage

et al. 2020

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Summary Compared with traditional anode materials, spinel‐structured Li4Ti5O12 (LTO) with “zero‐strain” characteristic offers better cycling stability. In this work, by a wet‐chemistry synthesis method, LTO anode materials have been successfully synthesized by using CH3COOLi·2H2O and C16H36O4Ti as raw materials. The results show that sintering conditions significantly affect purity, uniformity of particle sizes, and electrochemical properties of as‐prepared LTO materials. The optimized LTO product calcined at 650°C for 20 hours demonstrates small particle sizes and excellent electrochemical performances. It delivers an initial discharge capacity of 242.3 mAh g−1 and remains at 117.4 mAh g−1 over 500 cycles at the current density of 60 mA g−1 in the voltage range of 1.0 to 3.0 V. When current density is increased to 1200 mA g−1, its discharge capacity reaches 115.6 mAh g−1 at the first cycle and remains at 64.6 mAh g−1 after 2500 cycles. The excellent electrochemical performances of LTO can be attributed to the introduction of rutile TiO2 phase and small particle sizes, which increases electrical conductivity and electrode kinetics of LTO. Therefore, as‐synthesized LTO in this study can be regarded as a promising anode candidate material for lithium‐ion batteries.

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Progress of Li₄Ti₅O₁₂anode material for lithium ion batteries

Cited by 16 publications

References 45 publications

Functional materials for electrochemical energy storage

Functional materials for electrochemical energy storage

Fabrication of Li4Ti5O12 (LTO) as Anode Material for Li-Ion Batteries

Wet‐chemistry synthesis of Li₄Ti₅O₁₂as anode materials rendering high‐rate Li‐ion storage

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Progress of Li4Ti5O12anode material for lithium ion batteries

Cited by 16 publications

References 45 publications

Functional materials for electrochemical energy storage

Functional materials for electrochemical energy storage

Fabrication of Li4Ti5O12 (LTO) as Anode Material for Li-Ion Batteries

Wet‐chemistry synthesis of Li4Ti5O12as anode materials rendering high‐rate Li‐ion storage

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Progress of Li₄Ti₅O₁₂anode material for lithium ion batteries

Wet‐chemistry synthesis of Li₄Ti₅O₁₂as anode materials rendering high‐rate Li‐ion storage