Bridging the academic and industrial metrics for next-generation practical batteries

Cao, Yuliang; Li, Matthew; Lü, Jun; Liu, Jun; Amine, Khalil

doi:10.1038/s41565-019-0371-8

Cited by 505 publications

(333 citation statements)

References 75 publications

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“…Lithium‐ion batteries (LIBs), on the other hand, represent a form of clean energy storage system that can quickly store/release electricity to meet fluctuating demand. In the past decades, LIBs have made tremendous strides, including penetrated consumer electronics market and made electric vehicle possible . To push LIBs to the next performance level, extensive research efforts are now underway in search of novel electrodes to build a better LIB …”

Section: Introductionmentioning

confidence: 99%

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Chen

Tan

Rui

et al. 2019

InfoMat

125

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In the present study, V3O5 microcrystals that synthesized via vacuum calcination are employed as anodes for lithium‐ion batteries (LIBs) for the first time. Despite the widely observed sluggish reaction kinetics and poor cycling stability in most micro‐sized transition metal oxides, the V3O5 microcrystals exhibit excellent rate capability (specific capacities of 144 and 125 mAh g−1 are achieved at extremely high current densities of 20 and 50 A g−1, respectively) and long‐term cycling performance (specific capacity of 117 mAh g−1 is sustained over 2000 cycles at 50 A g−1). It is ascribed to the three‐dimensional open‐framework structure of the V3O5 microcrystals as a major factor in dictating the fast reaction kinetics (lithium diffusion coefficient: ~10−9 cm2 s−1). In addition, significant insight into the reaction mechanism of the V3O5 microcrystals in concomitant its phase evolution are obtained from ex‐situ XRD study, revealing that the V3O5 microcrystals undergo intercalation reaction with insignificant structural change in response to lithiation/delithiation.

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Section: Introductionmentioning

confidence: 99%

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Chen

Tan

Rui

et al. 2019

InfoMat

125

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“…The enormous weight of LIB contained within the electric vehicle, in particular, leads to reduced driving mileage due to the serious waste of energy . Thus, for further practical development of electromobility, full‐cell configuration with the maximized specific capacity must be realized for high‐energy LIBs …”

mentioning

confidence: 99%

Strategic Pore Architecture for Accommodating Volume Change from High Si Content in Lithium‐Ion Battery Anodes

Sung

Lee

et al. 2019

Advanced Energy Materials

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To be a thinner and more lightweight lithium‐ion battery with high energy density, the next‐generation anode with high gravimetric and volumetric capacity is a prerequisite. In this regard, utilizing high silicon (3579 mAh g−1) content in the electrode for the anode has been highlighted as a practically relevant approach. However, there still remains a crucial issue related to intrinsic volume expansion (>300%) of silicon upon lithiation, which can directly affect severe electrode swelling as well as accelerate its capacity fading by triggering structural degradation and electrical contact loss between particles. Herein, macropore‐exploited design, which can accommodate the volume change of high silicon content within the extended pore of graphite upon repeated cycling, is introduced. Such unique macropore‐exploited design leads to much less electrode swelling, by preserving its morphological integrity and contact between particles, than that of the comparative group with different sized pore and silicon distribution. As a result, this anode (914 mAh g−1) demonstrates notable gravimetric (220 Wh kg−1 at 6000 W kg−1) and volumetric energy density (623 Wh L−1 upon full lithiation after 100 cycles), exceeding that of a nano‐silicon blended graphite anode (127 Wh kg−1 and 229 Wh L−1) in the full‐cell system.

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“…In addition, with the combination of methods and advanced techniques using in situ configurations, the battery changes can be displayed during the overall testing process. Especially in the operando configurations, since the deviation of testing conditions (charging current density, beam window, coin–cell assembling pressure, ambient gas or vacuum conditions, etc.) from a real battery could hinder the observation of the actual reaction mechanism, the operating conditions in the development of in situ techniques are expected to be close to those in practical applications.…”

Section: Applications Of Advanced Characterization Methods To Siliconmentioning

confidence: 99%

Recent Progress in Advanced Characterization Methods for Silicon‐Based Lithium‐Ion Batteries

Ma²,

Liu

et al. 2019

Small Methods

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With the remarkably large theoretical specific capacity of silicon (Si), Si‐based rechargeable lithium‐ion batteries (LIBs) have attracted great interest, as they are expected to meet the growing demand for large‐scale energy storage devices, electric vehicles, and portable electronic devices with high energy density. However, the Si‐based LIB faces great challenges due to the cyclic volume changes induced by Si, which lead to considerable capacity fading. To facilitate the use of high‐performance LIBs enabled by Si‐based anodes, understanding the fading mechanism is necessary. In this regard, various advanced characterization methods have been developed to reveal the fading mechanism and to develop a modification strategy associated with compositional and structural evolution. In this review, the general understanding of the fading mechanism and the technical specifications of Si‐based LIBs are discussed. The recent progress in advanced characterization methods for Si‐based LIBs is summarized with respect to the achievements in compositional and structural interpretation. Several possible future research directions for Si‐based LIBs and the expected development trends in relevant characterization methods are also discussed.

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Bridging the academic and industrial metrics for next-generation practical batteries

Cited by 505 publications

References 75 publications

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Strategic Pore Architecture for Accommodating Volume Change from High Si Content in Lithium‐Ion Battery Anodes

Recent Progress in Advanced Characterization Methods for Silicon‐Based Lithium‐Ion Batteries

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Bridging the academic and industrial metrics for next-generation practical batteries

Cited by 505 publications

References 75 publications

Oxyvanite V3O5: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V3O5: A new intercalation‐type anode for lithium‐ion battery

Strategic Pore Architecture for Accommodating Volume Change from High Si Content in Lithium‐Ion Battery Anodes

Recent Progress in Advanced Characterization Methods for Silicon‐Based Lithium‐Ion Batteries

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Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery