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ALUMINA AND SLURRY CONTAINING THE SAME, AND ALUMINA POROUS FILM USING THE SAME, LAMINATED SEPARATOR, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
ALUMINA AND SLURRY CONTAINING THE SAME, AND ALUMINA POROUS FILM USING THE SAME, LAMINATED SEPARATOR, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
To provide alumina having excellent electrolytic solution stability and a slurry containing the same, and an alumina porous film using the same, a laminated separator, a nonaqueous electrolyte secondary battery and a method for manufacturing the nonaqueous electrolyte secondary battery.;The first aspect of the present invention provides alumina including one or more selected from the group consisting of K, Mg, Ca, Sr, Ba and La in the total amount of 200 to 50,000 ppm by mass, wherein a surface concentration of one or more elements is 0.5 to 20 at % in total. The second aspect of the present invention provides alumina, in which in an infrared absorption spectrum of the alumina obtained by Fourier-transform infrared spectroscopy, a peak having an intensity larger than that of a baseline defined by a line segment connecting an intensity at 3,400 cm−1 and an intensity at 3,500 cm−1 and having a half width of 90 cm−1 or less, does not exist in a range of 3,400 to 3,500 cm−1.
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机译:为了提供具有优异的电解液稳定性的氧化铝和包含该氧化铝的浆料,以及使用该浆料的氧化铝多孔膜,层叠隔膜,非水电解质二次电池以及非水电解质二次电池的制造方法。本发明提供一种氧化铝,该氧化铝包括选自K,Mg,Ca,Sr,Ba和La的一种或多种,其总量为200至50,000质量ppm,其中一种或多种元素的表面浓度为0.5至20ppm。总计%。本发明的第二方面提供了一种氧化铝,其中在通过傅立叶变换红外光谱法获得的氧化铝的红外吸收光谱中,具有比由连接强度在3,400cm处的线段限定的基线的强度更大的强度的峰。 -1 Sup>且在3,500 cm -1 Sup>处且半宽度为90 cm -1 Sup>或更小的强度在该范围内不存在3,400至3,500 cm -1 Sup>。
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