Nonaqueous Electrolyte Battery Inorganic Particles, and Nonaqueous Electrolyte Battery Using These
AssigneeAsahi Kasei Kabushiki Kaisha
InventorsNobuhiro ITO, Hiroyuki SAEKI
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Abstract
A purpose of the present disclosure is to provide nonaqueous electrolyte battery inorganic particles that enable provision of a nonaqueous electrolyte battery having excellent properties of safety and service life. Another purpose of the present disclosure is to provide an efficient and effective method for inspecting the metal absorption ability of nonaqueous electrolyte battery inorganic particles.
Claims21
Inorganic particles for a nonaqueous electrolyte battery, comprising a cation exchanger having a highly crystallized one-dimensional tunnel-like crystal structure.
An inspection method for a metal adsorption capacity of inorganic particles for a nonaqueous electrolyte battery, wherein the method comprises:
- preparing a nonaqueous electrolyte solution having a metal concentration of 0.1 to 10,000 ppm by adding a metal compound to a cyclic and/or a linear carbonate solution containing 0.1 to 6.0 mol/L of LiPF6 at a dew point of −40° C. or lower;
- preparing a nonaqueous electrolyte mixture solution by adding 0.001 to 100 parts by weight of the inorganic particles for a nonaqueous electrolyte battery to 100 parts of the nonaqueous electrolyte solution;
- stirring the nonaqueous electrolyte mixture solution at 0 to 45° C. for 1 second to 1000 hours;
- and
- carrying out quantitative analysis of the metal ion concentration in the nonaqueous electrolyte mixture solution after stirring using an inductively coupled plasma-atomic emission spectroscopy (ICP-AES) or an inductively coupled plasma-mass spectrometry (ICP-MS).
Dependencies are inferred from the claim text.