High discharge capacity solid composite polymer electrolyte lithium battery

Chen, Y.T.; Chuang, Yi-Chen; Su, Jiaxin; Yu, Hongtao; Chen-Yang, Y. W.

doi:10.1016/j.jpowsour.2010.11.058

Cited by 77 publications

(40 citation statements)

References 37 publications

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“…The use of this filler also results in improvements of the interface with the electrodes [56,67,68,73], thermal [69,72,73] and mechanical stability [50,56,57,63,66,72]. The inclusion of SiO 2 into P(MMA-AN-VAc) contributed also to the electrochemical stability and reversibility [73].…”

Section: >150mentioning

confidence: 98%

“…The formation of an interconnected porous structure with suitable pore diameter favoring liquid electrolyte uptake was found adding 10 wt% of fumed silica into a P(BMA-St) matrix [71] and SiO 2 into PMMA [70]. Cell cycle performances are also mentioned as a target for improvement by the addition of this filler to different polymeric matrices [64,72,73]. Thus, a SiO 2 /PVDF CPE showed stable cycleability with a capacity retention of about 85% after 100 cycles [64] and the SiO 2 /P(MMA-AN-VAc) system showed an almost unchanged discharge capacity after 50 cycles [73].…”

Section: >150mentioning

confidence: 99%

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Polymer composites and blends for battery separators: State of the art, challenges and future trends

Nunes-Pereira

Costa

Lanceros‐Méndez

2015

Journal of Power Sources

233

145

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Section: >150mentioning

confidence: 98%

Section: >150mentioning

confidence: 99%

Polymer composites and blends for battery separators: State of the art, challenges and future trends

Nunes-Pereira

Costa

Lanceros‐Méndez

2015

Journal of Power Sources

233

145

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“…They reported that poly(ethylene oxide) (PEO)-salt complexes can exhibit ionic conductivity at room temperature. Since then, there has been substantial research activity towards the preparation of a various type of polymer electrolytes for Li-based batteries having different combinations of polymer and salts [3][4][5][6][7]. Poly(methyl methacrylate) (PMMA) with its structure shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of blended solid polymer electrolyte 49% poly(methyl methacrylate)-grafted natural rubber:poly(methyl methacrylate)–lithium tetrafluoroborate

Su’ait

Noor

Ahmad

et al. 2012

J Solid State Electrochem

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The preparation and characterization of blended solid polymer electrolyte 49% poly(methyl methacrylate)-grafted natural rubber (MG49):poly(methyl methacrylate) (PMMA) (30:70) were carried out. The effect of lithium tetrafluoroborate (LiBF 4 ) concentration on the chemical interaction, structure, morphology, and room temperature conductivity of the electrolyte were investigated. The electrolyte samples with various weight percentages (wt. %) of LiBF 4 salt were prepared by solution casting technique and characterized by Fourier transform infrared spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and electrochemical impedance spectroscopy. Infrared analysis demonstrated that the interaction between lithium ions and oxygen atoms occurred at symmetrical stretching of carbonyl (C0O) (1,735 cm −1 ) and asymmetric deformation of (O-CH 3 ) (1,456 cm −1 ) via the formation of coordinate bond on MMA structure in MG49 and PMMA. The reduction of MMA peaks intensity at the diffraction angle, 2θ of 29.5°and 39.5°was due to the increase in weight percent of LiBF 4 . The complexation occurred between the salt and polymer host had been confirmed by the XRD analysis. The semi-crystalline phase of polymer host was found to reduce with the increase in salt content and confirmed by XRD analysis. Morphological studies by SEM showed that MG49 blended with PMMA was compatible. The addition of salt into the blend has changed the topological order of the polymer host from dark surface to brighter surface. The SEM analyses supported the enhancement of conductivity with the addition of salt. The conductivity increased drastically from 2.0 to 3.4 × 10 −5 S cm −1 with the addition of 25 wt.% of salt. The increase in the conductivity was due to the increasing of the number of charge carriers in the electrolyte. The conductivity obeys Arrhenius equation in higher temperature region from 333 to 373 K with the pre-exponential factor σ o of 1.21 × 10 −7 S cm −1 and the activation energy E a of 0.46 eV. The conductivity is not Arrhenian in lower temperature region from 303 to 323 K.

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“…In other words, the PAN film does not increase the resistance of the cell due to the thin film character and good ionic conductivity of the PAN layer. Taking from the literature a value of ionic conductivity of σ = 4.8 × 10 −5 S cm −1 for PAN-Li + , 31 and that a value of R e = 0.3 cm 2 is exclusively due to the conductivity of Li + ion through the PAN layer on nt-TiO 2 /PAN, the calculated thickness of the PAN layer is d = 0.14 μm. This value is reasonable, if we take into account that only one voltammetric cycle was used for electrodepositing the PAN film on nt-TiO 2 and that a thickness of d = 0.48 μm was found in our previous studies using five voltammetric cycles in PAN/CoSn alloy.…”

Section: Resultsmentioning

confidence: 99%

Improving the Electrochemical Properties of Self-Organized Titanium Dioxide Nanotubes in Lithium Batteries by Surface Polyacrylonitrile Electropolymerization

Nacimiento

González

Alcántara

et al. 2013

J. Electrochem. Soc.

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The surface of the amorphous TiO 2 nanotubes is critical to achieve high capacity, cycling stability and high rate performance. In order to improve the stability of nanotubular titanium dioxide electrodes in lithium batteries, polyacrylonitrile (PAN) has been deposited by electropolymerization. Self-organized TiO 2 nanotubes were prepared by titanium anodization with different aspect ratios. After electropolymerization, electron microscopy, composition mapping and XPS data confirmed that electrododeposited PAN covered the complete surface of open ends of the nanotubes, exclusively. The resulting electrode material was tested in lithium cells, and showed reversible areal capacities in the order of 0.5 mAhcm −2 and good cycling behavior and within a wide potential window (0.0-3.0 V). The improvement of the electrochemistry is more evident for the lower aspect ratio nt-TiO 2 , with capacity values normalized by the nanotubes length of around 0.25 mAh cm −2 μm -1 at slow rate. An areal capacity of 0.26 mAh cm −2 is delivered at 75C rate. The ion-conducting PAN layer ensures lithium ion access to the nanotubes, protects the open end surface from undesirable reactions with the electrolyte and provides enhanced mechanical stability to the electrode and lower charge transfer resistance. It is well known that self-organized titanium dioxide nanotubes (nt-TiO 2 ) can be grown by anodization of a titanium flat surface without the need of templates. 1,2 In recent years, the use of nt-TiO 2 in field of lithium ion batteries was found to be particularly promising. 3,4 Besides the lower theoretical capacity for lithium intercalation into TiO 2 (335 mAhg −1 for a maximum LiTiO 2 stoichiometry) as compared with graphite (372 mAhg −1 ), the higher voltage for Li intercalation could avoid lithium electroplating processes and thus increase the safety of current lithium-ion batteries. In addition to the insertion of Li into TiO 2 by a faradaic-type reaction involving the Ti 4+ /Ti 3+ redox pair, lithium ions may also be stored in the surface of the TiO 2 nanoparticles and increase the overall capacity by pseudocapacitive reactions and double layer phenomena. 5,6 In this line, Borghols et al.proposed that part of the extra capacity for amorphous TiO 2 nanoparticles may be due to the reversible lithium storage in the form of Li 2 O at the TiO 2 surface. 7 For nt-TiO 2 , a greater proportion of surface sites for reaction with lithium and a smaller proportion of interstitial sites for lithium insertion into bulk TiO 2 would be expected. Moreover, the high aspect ratio of nt-TiO 2 , defined as the nanotube length-to-outer diameter ratio, allows achieving higher areal capacities, which is particularly useful for the development of 3D microbatteries with high power density and fast charge properties. 4,8 On the other hand, some limitations are inherent to the use of TiO 2 electrodes. Both the Jahn-Teller effect of Ti 3+ ions and phase transitions can produce strains in crystalline TiO 2 and capacity fade on electrochemical charge-discharge ...

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High discharge capacity solid composite polymer electrolyte lithium battery

Cited by 77 publications

References 37 publications

Polymer composites and blends for battery separators: State of the art, challenges and future trends

Polymer composites and blends for battery separators: State of the art, challenges and future trends

Preparation and characterization of blended solid polymer electrolyte 49% poly(methyl methacrylate)-grafted natural rubber:poly(methyl methacrylate)–lithium tetrafluoroborate

Improving the Electrochemical Properties of Self-Organized Titanium Dioxide Nanotubes in Lithium Batteries by Surface Polyacrylonitrile Electropolymerization

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