Fujifilm Wako Pure Chemical Corporation

Hiromi Watahiki

Kuniaki Okamoto

Kazuhiko Sato

Nobutaka Shimamura

Goro Mori

Hironori Mizuta

Takahiro Kiyosu

Takatoshi Matsuura

Kazuki Takimoto

Kaho Sugimoto

An object of the present invention is to provide an excellent binder agent composition solving problems such as the decrease in a charge/discharge capacity that occurs in a case where a silicon-containing active material is used, a slurry composition and an electrode in which the binder agent composition is used, and a method for preparing the electrode. The present invention relates to 'a binder agent composition containing (A) one or more kinds of polymers containing polyacrylic acid, (B) a bivalent to decavalent alcohol, and (C) water', 'a slurry composition for lithium batteries, containing 1) a silicon-containing active material, 2) a conductive assistant, and 3) the binder agent composition', &#x201c;an electrode for lithium batteries that has 1) a silicon-containing active material, 2) a conductive assistant, 3) a binder agent derived from the binder agent composition, and 4) a current collector&#x201d;, and &#x201c;a method for preparing an electrode for lithium batteries, including coating a current collector with the slurry composition and drying the slurry composition after the coating&#x201d;.

Binder agent composition for lithium battery

The present invention relates to an electrolytic solution for a magnesium battery, formed by mixing a compound represented by the following general formula (I), a Lewis acid or a compound represented by the following general formula (A), and a solvent; and the like.  {In the formula, m represents 0 or 2, n represents 2 in a case of m=0 and represents 0 or 1 in a case of m=2, Xrepresents a chlorine atom or a bromine atom, and two R's each independently represent a magnesium chloride oxy group; a magnesium bromide oxy group; an alkyl group which may have a halogeno group or the like as a substituent; an alkoxy group; an aryl group which may have an alkoxy group or the like as a substituent; an aryloxy group which may have an alkoxy group or the like as a substituent; or a group represented by the following general formula (1), and two R's may also form the following general formula (2).}  (In the formula, four R's each independently represent an alkyl group, a perfluoroalkyl group, a phenyl group, or a perfluorophenyl group.)

Phosphorus electrolytic solution containing magnesium ions

An object of the present invention is to provide a highly practical electrolytic solution which has a high oxidative decomposition potential, enables the dissolution and precipitation of magnesium to stably repeatedly proceed, and is easy to prepare. The present invention relates to an electrolytic solution for a magnesium battery comprising: a compound represented by the general formula (I), a Lewis acid or a compound represented by the general formula (A), and a solvent; and to the compound represented by the general formula (I). In the formula (I), two X's each independently represent a halogeno group, and Rrepresents an alkyl group having 1 to 6 carbon atoms; an alkoxy group having 1 to 6 carbon atoms; a phenoxy group; a &#x2014;OMgX group (X is the same as X described above); an aryl group having 6 to 18 carbon atoms which has, as a substituent, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a vinyl group, a phenyl group, a phenoxy group, a halogeno group or a &#x2014;B(OMgX)group (X is the same as X described above) or is unsubstituted; or a monocyclic or bicyclic heterocyclic group which has, as a substituent, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a vinyl group, a phenyl group, a phenoxy group, a halogeno group, or a &#x2014;B(OMgX)group (X is the same as X described above) or is unsubstituted. In the general formula (A), four R's each independently represent an alkyl group having 1 to 6 carbon atoms, a perfluoroalkyl group having 1 to 6 carbon atoms, a phenyl group, or a perfluorophenyl group.

Electrolyte solution containing magnesium ions

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Saitama, Japan

Hiromi Watahiki