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Lithium polymer battery composed by aluminate polymer complex as single - ionic solid electrolytes
Onishi, Ken,Matsumoto, Michiko,Shigehara, Kiyotaka 한국공업화학회 1999 응용화학 Vol.3 No.1
Single-ionic conductors, which promote solely the lithium ion migration (without any anion migration), have been realized as the polymeric solid electrolytes with lithium orthoaluminate repeating units carrying oligo(oxyethylene) main-chain and two side-chains of endomethoxy{oligo(oxyethylene)}. The ionic conductivity of the aluminate polymer complexes was about 10^-6∼10^-7S/cm at room temperature. Thin film lithium secondary batteries were fabricated into 5.5×4.5×O.02(thick) cm cells from TiS₂(cathode), aluminate polymer complex and lithium foil (anode). These batteries showed minimal decay of output voltage upon constant current discharging and their capacity of first cycle was about 147mAh/g. A typical bi-lonic conductor of (5%LiClO₄+aluminate polymer complex) hybrid system showed, on the contrary, rapid decay of output voltage due to the polarization.
Octacyanophthalocyanine Cathode Materials for Secondary Lithium Cells
Kim, Soo Jong,Onishi, Ken,Matsumoto, Michiko,Shigehara, Kiyotaka 한국공업화학회 1999 응용화학 Vol.3 No.1
Highly pure octacyanophthalocyaninatoiron(II) was synthesized by the reaction between tetracyanobenzene and iron(II) acetate in sulfolane. The charge/discharge characteristics of lithium cells with octacyanophthalocyaninatoiron(II) cathode were studied. The capacity and the energy density based on the quantity of cathode active material were 550 mAh/g and 930 Wh/㎏, respectvely. It was found that the octacyanophthalocyaninatoiron(II) is a promising candidate as a active cathode material for lithium secondary batteries.
Minamidani, Tetsuhiro,Tanaka, Takanori,Mizuno, Yoji,Mizuno, Norikazu,Kawamura, Akiko,Onishi, Toshikazu,Hasegawa, Tetsuo,Tatematsu, Ken'ichi,Takekoshi, Tatsuya,Sorai, Kazuo,Moribe, Nayuta,Torii, Kazufu American Institute of Physics 2011 The Astronomical journal Vol.141 No.3
<P>In order to precisely determine the temperature and density of molecular gas in the Large Magellanic Cloud, we made observations of the optically thin <SUP>13</SUP>CO(J = 3-2) transition using the ASTE 10 m telescope toward nine peaks where <SUP>12</SUP>CO(J = 3-2) clumps were previously detected with the same telescope. The molecular clumps include those in giant molecular cloud (GMC) Types I (with no signs of massive star formation), II (with H <SPAN CLASS='sml'>II</SPAN> regions only), and III (with H <SPAN CLASS='sml'>II</SPAN> regions and young star clusters). We detected <SUP>13</SUP>CO(J = 3-2) emission toward all the peaks and found that their intensities are 3-12 times lower than those of <SUP>12</SUP>CO(J = 3-2). We determined the intensity ratios of <SUP>12</SUP>CO(J = 3-2) to <SUP>13</SUP>CO(J = 3-2), R<SUP>12/13</SUP><SUB>3-2</SUB>, and <SUP>13</SUP>CO(J = 3-2) to <SUP>13</SUP>CO(J = 1-0), R<SUP>13</SUP><SUB>3-2/1-0</SUB>, at 45'' resolution. These ratios were used in radiative transfer calculations in order to estimate the temperature and density of the clumps. The clumps have a kinetic temperature range of T<SUB>kin</SUB> = 15-200 K and a molecular hydrogen gas density range of n(H<SUB>2</SUB>) = 8 × 10<SUP>2</SUP>-7 × 10<SUP>3</SUP> cm<SUP>–3</SUP>. We confirmed that the higher density clumps have higher kinetic temperature and that the lower density clumps have lower kinetic temperature to better accuracy than in previous work. The kinetic temperature and density increase generally from a Type I GMC to a Type III GMC. We interpret that this difference reflects an evolutionary trend of star formation in molecular clumps. The R<SUP>13</SUP><SUB>3-2/1-0</SUB> and kinetic temperature of the clumps are well correlated with the Hα flux, suggesting that the heating of molecular gas with density n(H<SUB>2</SUB>) = 10<SUP>3</SUP>-10<SUP>4</SUP> cm<SUP>–3</SUP> can be explained by stellar far-ultravoilet photons.</P>