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Enhanced electroche...
Enhanced electrochemical performance of LiMnBO3 with conductive glassy phase : a prospective cathode material for lithium-ion battery
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- Ragupathi, V. (författare)
- Hindustan Inst Technol & Sci, Ctr Clean Energy & Nano Convergence, Madras, Tamil Nadu, India.
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- Safiq, M. (författare)
- Uppsala universitet,KTH,Tillämpad materialfysik,Uppsala Univ, Sweden,Materialteori,Royal Inst Technol KTH, Appl Mat Phys, Dept Mat, S-10044 Stockholm, Sweden.;Royal Inst Technol KTH, Appl Mat Phys, Dept Engn, S-10044 Stockholm, Sweden.
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- Panigrahi, P. (författare)
- Uppsala universitet,Materialteori,Hindustan Inst Technol & Sci, Ctr Clean Energy & Nano Convergence, Madras, Tamil Nadu, India
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- Hussain, Tanveer (författare)
- Uppsala universitet,KTH,Tillämpad materialfysik,Uppsala Univ, Sweden,Materialteori,Royal Inst Technol KTH, Appl Mat Phys, Dept Mat, S-10044 Stockholm, Sweden.;Royal Inst Technol KTH, Appl Mat Phys, Dept Engn, S-10044 Stockholm, Sweden.
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- Raman, S. (författare)
- Hindustan Inst Technol & Sci, Ctr Clean Energy & Nano Convergence, Madras, Tamil Nadu, India.
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- Ahuja, Rajeev (författare)
- Uppsala universitet,KTH,Tillämpad materialfysik,Uppsala Univ, Sweden,Materialteori,Royal Inst Technol KTH, Appl Mat Phys, Dept Mat, S-10044 Stockholm, Sweden.;Royal Inst Technol KTH, Appl Mat Phys, Dept Engn, S-10044 Stockholm, Sweden.
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- Nagarajan, G. S. (författare)
- Dongguk Univ, NITA, 26 Phildong3ga, Seoul 100715, South Korea.
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Hindustan Inst Technol & Sci, Ctr Clean Energy & Nano Convergence, Madras, Tamil Nadu, India Tillämpad materialfysik (creator_code:org_t)
- 2017-03-01
- 2017
- Engelska.
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Ingår i: Ionics (Kiel). - : Springer. - 0947-7047 .- 1862-0760. ; 23:7, s. 1645-1653
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- LiMnBO3 has been identified as a promising cathode material for next-generation lithium-ion batteries. In this study, LiMnBO3 along with glassy lithium borate material (LiMnBO3 (II)) is synthesized by sol-gel method. X-ray diffraction (XRD) analysis depicts the existence of LiBO2 glassy phase along with m-LiMnBO3 phase. Transmission electron microscopy (TEM) analysis confirms the presence of LiBO2 glassy phase. An enhanced electrical conductivity of 3.64 x 10(-7) S/cm is observed for LiMnBO3 (II). The LiBO2 glassy phase is found to promote the Li reaction kinetics in LiMnBO3 (II). The synthesized LiMnBO3 (II) delivers a first discharge capacity of 310 mAh g(-1) within a potential window of 1.5-4.5 V at C/10 rate. Further, a discharge capacity of 186 mAh g(-1) at the 27th cycle shows a better cycle performance. The enhanced capacity is due to the presence of LiBO2 glassy phase and more than one Li-ion transfer in the lithium-rich stoichiometry of LiMnBO3 (II). Density functional theory calculation reveals the exact electronic structure of m-LiMnBO3 with a band gap of 3.05 eV. A charge transfer mechanism is predicted for delithiation process of m-LiMnBO3.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- Monoclinic LiMnBO3
- Enhanced capacity
- Lithium borate
- Conductive glassy
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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