On the stress characteristics of graphite anode in commercial pouch lithium-ion battery

Liu, Dongren; Wang, Ying; Xie, Yuansen; He, Liang; Chen, Jie; Wu, Kai; Xu, Rui; Gao, Yan

doi:10.1016/j.jpowsour.2012.12.110

Cited by 65 publications

(37 citation statements)

References 23 publications

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“…Even though considered fairly stable due to the moderate dimensional changes upon Li-intercalation compared to the potential metallic anode materials [1][2][3], structural degradation of graphitic carbon based anodes still contribute considerably towards the overall capacity fade of Li-ion batteries [4][5][6][7][8][9]. In fact, such structural degradation is possibly one of the major contributing factors towards the aging of Li-ion batteries because it leads to the continued formation of solid electrolyte interphase (SEI) layers at the 'freshly formed' graphitic carbon surfaces, which http://dx.doi.org/10.1016/j.carbon.2015.02.078 0008-6223/Ó 2015 Elsevier Ltd. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to consuming Li-ions irreversibly, SEI layer formation itself leads to stress development, supplementing those arising from the actual lithiation/delithiation [5,3,10]. Evidences for the occurrences of structural damage in graphitic carbon upon electrochemical cycling have been obtained ex situ by few groups, with the aids of electron microscopy, Raman spectroscopy and Raman imaging [4,7,8,11]. In a more recent work [12], observations made in real-time with optical microscopy also suggest occurrences of significant damages to the surfaces of graphitic carbon electrodes during lithiation/delithiation.…”

Section: Introductionmentioning

confidence: 99%

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Insight into the mechanical integrity of few-layers graphene upon lithiation/delithiation via in situ monitoring of stress development

Sonia

Ananthoju

Jangid

et al. 2015

Carbon

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Insight into the mechanical integrity of few-layers graphene upon lithiation/delithiation via in situ monitoring of stress development

Sonia

Ananthoju

Jangid

et al. 2015

Carbon

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“…Moreover, the hollow RGO microspheres can release the accumulated stresses better due to the hollow structure in compare with traditional RGO [30], which are inevitably generated in RGO anode owing to periodic volume change in cycling process. Therefore, it's a good strategy to prevent the aggregation of RGO nanosheets and the degradation of RGO anode by building hollow microspherical graphene material for their low interfacial energy and unique hollow structure.…”

mentioning

confidence: 99%

Hollow reduced graphene oxide microspheres as a high-performance anode material for Li-ion batteries

Mei

Song

et al. 2015

Electrochimica Acta

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“…Raman Spectroscopy Technique: The fundamental principle of Raman spectroscopy to measure the real-time strain/stress evolution is that the phonons generated by the crystals will be changed when they are strained/stressed, giving rise to a wavenumber shift of typical peaks, [331,332] as shown in Figure 18a. The quantitative relationship between the peak shift and biaxial strains/stresses is given as follows [331] …”

Section: Multibeam Optical Stress Sensor (Moss) Techniquementioning

confidence: 99%

Interfacial Incompatibility and Internal Stresses in All‐Solid‐State Lithium Ion Batteries

Liu

et al. 2019

Advanced Energy Materials

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The continuous depletion of fossil fuels, the increase of oil prices, and the need to decrease CO 2 emissions have stimulated intensive research on developing alternative renewable and clean energy sources. [1] Among these alternative energy sources, rechargeable Li-ion batteries (LIBs) are one of the promising candidates. To date, the LIBs basically consisting of a positive electrode (cathode), an electrolyte, and a negative electrode (anode) have widespread applications, such as portable electronic devices, pure electric vehicles (PEVs), and hybrid electric vehicles (HEVs). [2] The state-of-the-art electrolytes are usually the lithium salts (LiPF 6 , LiBF 4 , and LiCF 3 SO 3 ) dissolved in organic solvents, i.e., ethylene carbonate, propylene carbonate, polyethylene oxide, and dimethyl carbonate, [3] which exhibit excellent wetting of the electrodes and produce a fast transfer of Li + ions upon charging and discharging. However, they suffer from flammability, poor electrochemical stability, limited temperature range of operation, and low power density. [4] There is an ever-increasing demand for batteries with a higher energy and power density, although current LIBs offer volumetric and gravimetric energy densities up to 770 Wh L −1 and 260 Wh kg −1 , respectively. [5] To improve the energy/power density of LIBs, one way is to adopt high-potential cathode materials such as LiNi 0.5 Mn 1.5 O 4 (LNMO). The high-voltage plateau of LNMO (≈4.7 V vs Li/Li + ) makes its energy density 20-30% higher than the energy density of commercial LiCoO 2 and LiFePO 4 . [6] However, successful commercialization of the LNMO is restricted in high-energy LIBs due to electrolyte decomposition and side reaction of the cathodes and liquid electrolytes when operating at high voltages. [7,8] The other way to improve the energy/power density is to replace the conventional graphite anode with Li metal. The Li metal, with a low anode potential (−3.04 V vs standard hydrogen electrode) and high specific capacity (3862 mAh g −1 for the Li anode versus 372 mAh g −1 for the graphite anode), [9][10][11] has been considered as the "Holy Grail" of battery technologies. When paired with sulfur and oxygen, the theoretical energy density of Li-S (≈2567 Wh kg −1 ) and Li-O 2 (≈3505 Wh kg −1 ) batteries is far higher than the theoretical energy density of conventional LIBs (≈387 Wh kg −1 ). [12][13][14][15] When Li metal approaches the liquid electrolytes, however, unstable Li/electrolyte interface Rechargeable Li-ion batteries (LIBs) are electrochemical storage device widely applied in electric vehicles, mobile electronic devices, etc. However, traditional LIBs containing liquid electrolytes suffer from flammability, poor electrochemical stability, and limited operational temperature range. Replacement of the liquid electrolytes with inorganic solid-state electrolytes (SSEs) would solve this problem. However, several critical issues, such as poor interfacial compatibility, low ionic conductivity at ambient temperatures, etc., need to be surmounted befor...

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On the stress characteristics of graphite anode in commercial pouch lithium-ion battery

Cited by 65 publications

References 23 publications

Insight into the mechanical integrity of few-layers graphene upon lithiation/delithiation via in situ monitoring of stress development

Insight into the mechanical integrity of few-layers graphene upon lithiation/delithiation via in situ monitoring of stress development

Hollow reduced graphene oxide microspheres as a high-performance anode material for Li-ion batteries

Interfacial Incompatibility and Internal Stresses in All‐Solid‐State Lithium Ion Batteries

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