Zobrazeno 1 - 10 of 249 pro vyhledávání: '"G. Pistoia"'
1
Recent advances in high energy non-aqueous batteries
Autor: G. Pistoia, F. Conti
Publikováno v: Journal of Applied Chemistry and Biotechnology. 21:77-81
A survey of the recent progress in the field of high energy non-aqueous batteries is presented. The newest batteries show some improvements on the existing ones although numerous problems still remain. The use of electrolytic solutions with higher sp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f232819c2be4a5f1a87b7d2c1c9846c
https://doi.org/10.1002/jctb.5020210305
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2
Factors Affecting the Stabilization of Mn Spinel Capacity upon Staring and Cycling at High Temperatures
Autor: A. Antonini, G. Pistoia, Carlo Bellitto, Mauro Pasquali
Publikováno v: Scopus-Elsevier
Doped and undoped Mn spinels have been evaluated at 55°C in terms of capacity losses upon cycling and storage. The influence of such factors as doping, electrolyte nature, voltage range and constant- or floating-potential storage have been evaluated
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https://doi.org/10.1149/1.1838705
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3
Doped Li−Mn Spinels: Physical/Chemical Characteristics and Electrochemical Performance in Li Batteries
Autor: G. Pistoia, Gabriel Maria Ingo, A. Antonini, R. Rosati, C. Bellitto
Publikováno v: Chemistry of materials 9 (1997): 1443–1450. doi:10.1021/cm970049c
info:cnr-pdr/source/autori:G. Pistoia, A. Antonini, R. Rosati, C. Bellitto, G.M. Ingo [2]/titolo:Doped Li-Mn spinels: Physical%2Fchemical characteristics and electrochemical performance in Li batteries/doi:10.1021%2Fcm970049c/rivista:Chemistry of materials/anno:1997/pagina_da:1443/pagina_a:1450/intervallo_pagine:1443–1450/volume:9
Several doped spinel-type Li-Mn oxides of formula Li1+xMyMn2-(x+y)O4+2, where Mn is partly replaced by Li, Cu, Zn, Ni, Co, Fe, Cr, Ga, Al, B, or Ti, were prepared by a solid-state reaction at 730 degrees C. These spinels were investigated by X-ray po
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18927e2dbdae368cf75fde0c3c033e48
https://doi.org/10.1021/cm970049c
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4
Lithiated MnO2 Phases as Cathodes for 3 V Li and Li‐Ion Cells
Autor: G. Pistoia, A. Antonini
Publikováno v: Journal of The Electrochemical Society. 144:1553-1559
Some polymorphs of MnO 2 , i.e., α-, β-, γ-MnO 2 (the latter in the form of two electrochemical MnO 2 and a chemical MnO 2 ), and ramsdellite (R-MnO 2 ), have been submitted to electrochemical potential spectroscopy (EPS) tests. This quasi-equilib
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b2772060da2e703c476bd16fc7e93ebb
https://doi.org/10.1149/1.1837640
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5
Storage characteristics of cathodes for Li-ion batteries
Autor: G. Pistoia, R. Rosati, Daniela Zane, A. Antonini
Publikováno v: Electrochimica Acta. 41:2683-2689
The storage characteristics of LiMn2O4, LiCoO2 and LiNiO2 have been evaluated in liquid electrolytes commonly used in lithium-ion batteries. All materials show self-discharge phenomena even at moderate oxidation levels. Three mechanisms are thought t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b305236b063172df3a84662c4b491605
https://doi.org/10.1016/0013-4686(96)00122-3
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7
Synthesis of an efficient LiMn2O4 for lithium-ion cells
Autor: R. Rosati, G. Pistoia
Publikováno v: Journal of Power Sources. 58:135-138
A technique is described which allows to obtain an LiMn2O4 cathode showing high material utilization and extended cycleability at high rates in Li or Li-ion cells. Basically, the precursors, e.g. chemical MnO2 and LiOH, were ground together in the pr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca63294fe87e4f683cba8209cf344639
https://doi.org/10.1016/0378-7753(96)89188-9
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8
Impedance study on the reactivity of gel polymer electrolytes towards a lithium electrode
Autor: A. Antonini, G. Wang, G. Pistoia
Publikováno v: Journal of Power Sources. 58:139-144
Impedance tests have been run, during a 10-day storage, on lithium electrodes in contact with carbonate-based liquid electrolytes and gel polymer electrolytes formed by immobilizing the former in poly (acrylonitrile) (PAN) and poly(vinyl chloride) (P
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::feaf3edd1474f3ea33f1ecd95ceac67b
https://doi.org/10.1016/s0378-7753(96)02382-8
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9
Effect of electrode porosity on the performance of natural Brazilian graphite electrodes
Autor: B. Puresheva, G. Pistoia, V. Manev, I. Naidenov
Publikováno v: Journal of Power Sources. 57:133-136
Natural Brazilian graphite has been investigated as a reversible Li+-intercalating electrode for lithium-ion cells. Its performance is greatly influenced by the electrode preparation technique. A short compacting time (1 s or less), when pressing the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3843f11ae729c01cb9c375907a1112ad
https://doi.org/10.1016/0378-7753(95)02268-6
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10
Some Aspects of LiMn2 O 4 Electrochemistry in the 4 Volt Range
Autor: G. Pistoia, Daniela Zane, Y. Zhang
Publikováno v: Journal of The Electrochemical Society. 142:2551-2557
LiMn 2 O 4 is a hopping semiconductor ( = 2 x 10 -6 Ω -1 cm -1 ) as is λ-MnO 2 obtained by full delithiation. A semiconductor-metal transition is not observed by Li + extraction because the critical Mn-Mn distance for this transition (2.743 A) is s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f946d36a4cb2f2bac8ebbbb1d53d5e0e
https://doi.org/10.1149/1.2050052
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