Towards maximized volumetric capacity via pore-coordinated design for large-volume-change lithium-ion battery anodes

Ma, Jiyoung; Sung, Jaekyung; Hong, Jaehyung; Chae, Sujong; Kim, Nam‐Hyung; Choi, Seong‐Hyeon; Nam, Gyutae; Son, Yoonkook; Kim, Sung Youb; Ko, Minseong; Cho, Jaephil

doi:10.1038/s41467-018-08233-3

Cited by 98 publications

(70 citation statements)

References 44 publications

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“…[52,53] During charge and discharge process, no obvious band change is observed, demonstrating that CF 3 SO 3 − is not involved in the whole energy storage process. Along with VO stretching vibration at 1025 cm −1 , the bands located at 863 and 606 cm −1 are corresponding to the vibration of O-(V) 3 and stretching modes of V-O-V, respectively. Upon the discharge process, the redshift of the VO stretching vibration to 1020 cm −1 can be attributed to the intercalation of zinc ions that www.afm-journal.de www.advancedsciencenews.com…”

Section: (8 Of 11)mentioning

confidence: 99%

“…Lithium-ion batteries (LIBs) has made significant achievements for energy storage and portable applications. [1][2][3] Along with sharply increasing demands on high-performance energy devices, it is an urgent requirement to design alternative charge-transport characteristics. [20] Especially, the intercalation of PANI chains into vanadium oxide was demonstrated to expand the mesopores and enhance the electrical conductivity of the resultant nanocomposite, [21] which would enhance the batteries' performance.…”

Section: Introductionmentioning

confidence: 99%

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Regulation of Lamellar Structure of Vanadium Oxide via Polyaniline Intercalation for High‐Performance Aqueous Zinc‐Ion Battery

Song

Hui

et al. 2020

Adv Funct Materials

234

118

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According to the intercalation mechanism, an ordered modulation of channel structures of metal oxides is crucial to reversibly accumulate large zinc ions with high surface charge density for improving zinc-ion battery performance. However, the irreversible structure-transition commonly results in serious performance decay. Herein, polyanilines are in situ intercalated into the layered vanadium oxide in order to enlarge the lamellar spacing for enhancing the battery performance. With enlarged lattice spacing, the polyaniline intercalated vanadium oxide (PIVO) coupled with a Zn electrode exhibit a large specific capacity of 372 mAh g −1 and good cycling stability. More importantly, in situ characterization results reveal that PIVO allows the accumulation of additional zinc ions without obvious phase transformation and the conjugated polymeric chains enable the structure flexibility in the confined layer space to relieve the intercalation stress for improving cycling stability. Additionally, findings from the in situ infrared spectroscopy measurements elucidate the charge storage mechanism of the battery. Reversible doping processes of polyaniline molecules in vanadium oxide allow the involvement of multiple ions in the charge storage process, improving battery performance. Uncovering the origin of improved charge storage mechanisms is of importance in rationally designing advanced materials with unique organic-inorganic features for high-performance zinc-ion batteries.

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Section: (8 Of 11)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Regulation of Lamellar Structure of Vanadium Oxide via Polyaniline Intercalation for High‐Performance Aqueous Zinc‐Ion Battery

Song

Hui

et al. 2020

Adv Funct Materials

234

118

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“…It is well accepted that carbon‐based materials in an LIB anode for reversible lithium‐ion energy transfer are stable and easily manufactured at a low cost. By introducing other active materials with a higher capacity and larger volume expansion, the structural design of the composite is essential …”

Section: Energy Storagementioning

confidence: 99%

Recent Progress of In Situ Transmission Electron Microscopy for Energy Materials

et al. 2019

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replacing gasoline, diesel, or other types of fuels with electricity, it is expected that our world will become more environmentally friendly by storing energy directly from sustainable sources, such as solar, wind, geothermal, bioenergy, and the ocean. Even Australia, as a country with abundant energy resources, has identified energy as one of the key scientific research priorities. It is clear that the efficiency of energy harvesting and consumption must be improved, emissions must be reduced, and the integration of various energy sources into the electricity grid and chemical storage must be implemented. A desirable outlook is one with a variety of energy sources and mechanisms that significantly reduces carbon emissions and is economical for consumers and society. Recent fast-growing research should boost the development of reliable, highly efficient, low-cost, and sustainable energy materials that are effective for new technologies and that satisfy the growing demand for energy storage and climate change solutions.The progress in energy materials is indeed significant, however, as the expectations of energy materials research are always quite high, it is not sufficient. Particularly, the material performances are always theoretically predicted but are limited by the underlying mechanisms in real applications. As a wellknown example, silicon is expected to deliver a high theoretical capacity of 4200 mAh g −1 in the form of Li 4.4 Si, and is thought to replace the currently commercial graphite with a capacity of 372 mAh g −1 . However, in real applications, it is found that Si exhibits more than 360% of volume expansion during lithiation, which leads to battery anode failure. In the last few years, TEM, especially in situ TEM, has provided exceptional advantages in investigating the lithiation process of silicon anodes: direct imaging, full crystallography information, and real-time recording have all become possible. By directly observing the charge/discharge processes of Si anodes, the dynamics of expansion have been well understood. The research has then been focused on structural designs of composites containing Si to overcome the expansion. The Si composites (for instance, carbon-wrapped Si nanoparticles with different sizes) were directly analyzed by in situ TEM to determine the best structural design. [12] From 2012, in situ TEM became an essential tool to review and evaluate structural designs for high-capacity anodes with significant volume expansions. The same scenarios apply to similar research topics. In situ transmission electron microscopy (TEM) is one of the most powerfulapproaches for revealing physical and chemical process dynamics at atomic resolutions. The most recent developments for in situ TEM techniques are summarized; in particular, how they enable visualization of various events, measure properties, and solve problems in the field of energy by revealing detailed mechanisms at the nanoscale. Related applications include rechargeable batteries such as Li-ion, Na-ion, Li-O 2 , Na-O 2 , Li...

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“…However, the alloy reaction mechanisms of silicon are significantly different from those of conventional layered electrodes. There are many challenges that emerge during lithiation/delithiation progress [18][19][20] (Fig. 1): complete destruction of crystal structure producing huge volume expansion (ca.…”

Section: Introductionmentioning

confidence: 99%

Structure design and mechanism analysis of silicon anode for lithium-ion batteries

Chen

Yan

et al. 2019

Sci. China Mater.

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Silicon-based material is one of the most promising substitutes of widely used graphite anodes for the next generation Li-ion batteries due to its high theoretical capacity, low working potential, environmental friendliness, and abundant natural resource. However, the huge volume expansion and serious interfacial side reactions during lithiation and delithiation progresses of the silicon anode are the key issues which impede their further practical applications. Rational designs of silicon nanostructures are effective ways to address these problems. In this progress report, we firstly highlight the fundamental scientific problems, and then focus on recent progresses in design, preparation, in-situ characterization methods and failure mechanism of nanostructured silicon anode for high capacity lithium battery. We also summarize the key lessons from the successes so far and offer perspectives and future challenges to promote the applications of silicon anode in practical lithium batteries.

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Towards maximized volumetric capacity via pore-coordinated design for large-volume-change lithium-ion battery anodes

Cited by 98 publications

References 44 publications

Regulation of Lamellar Structure of Vanadium Oxide via Polyaniline Intercalation for High‐Performance Aqueous Zinc‐Ion Battery

Regulation of Lamellar Structure of Vanadium Oxide via Polyaniline Intercalation for High‐Performance Aqueous Zinc‐Ion Battery

Recent Progress of In Situ Transmission Electron Microscopy for Energy Materials

Structure design and mechanism analysis of silicon anode for lithium-ion batteries

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