Apparatus and method for manufacturing an electricity storage material

Patent metadata

Field	Value
Publication number	US-9825298-B2
Application number	US-201414584251-A
Country	US
Kind code	B2
Filing date	Dec 29, 2014
Priority date	Jan 14, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

An apparatus and method for manufacturing an electricity storage material are provided which allow easily measuring the dissolution rate to solubility of a solution of a powder thickener dissolved in a liquid solvent. An apparatus for manufacturing an electricity storage material includes: a dissolving device that dissolves in a liquid solvent a thickener as powder that is ionized when dissolved; and a dissolution-rate-to-solubility determining device that measures conductivity of the solution produced by the dissolving device and determines a dissolution rate to solubility of the solution based on the measured conductivity. The dissolution rate to solubility can thus be determined without the need to stop the dissolving device during dissolution of the thickener in the liquid solvent. This can significantly improve production efficiency. Since excessive operation of the dissolving device can be prevented, energy saving can be achieved.

First claim

What is claimed is:

1. An apparatus for manufacturing an electricity storage material containing at least a thickener and an active material, comprising:
a dissolving device that dissolves a powder into a liquid solvent of the electricity storage material as the thickener, the powder being ionized when dissolved; and
a dissolution-rate-to-solubility determining device including a conductivity meter inserted into a liquid solution of the thickener dissolved by the dissolving device, and configured to measure a conductivity of the liquid solution of the thickener and to determine a dissolution rate to solubility of the liquid solution of the thickener based on the measured conductivity.

2. The apparatus for manufacturing an electricity storage material containing at least a thickener and an active material according to claim 1 , further comprising:
a viscosity estimating device that estimates viscosity of the liquid solution of the thickener based on the dissolution rate to solubility of the liquid solution of the thickener determined by the dissolution-rate-to-solubility determining device.

3. The apparatus for manufacturing an electricity storage material containing at least a thickener and an active material according to claim 1 , further comprising:
a viscosity adjusting device that adjusts viscosity of the liquid solution of the thickener; and
a kneading device that kneads the liquid solution of the thickener having the adjusted viscosity and the active material.

4. The apparatus for manufacturing an electricity storage material containing at least a thickener and an active material according to claim 2 , further comprising:
a viscosity adjusting device that adjusts viscosity of the liquid solution of the thickener; and
a kneading device that kneads the liquid solution of the thickener having the adjusted viscosity and the active material.

5. The apparatus for manufacturing an electricity storage material containing at least a thickener and an active material according to claim 1 , wherein,
the dissolution-rate-to-solubility determining device is connected to a memory which stores the conductivity of the solution of the thickener during dissolution of the thickener in the solvent by the dissolving device.

6. The apparatus for manufacturing an electricity storage material containing at least a thickener and an active material according to claim 2 , wherein,
the dissolution-rate-to-solubility determining device is connected to a memory which stores the conductivity of the solution of the thickener during dissolution of the thickener in the solvent by the dissolving device.

7. The apparatus for manufacturing an electricity storage material containing at least a thickener and an active material according to claim 3 , wherein,
the dissolution-rate-to-solubility determining device is connected to a memory which stores the conductivity of the solution of the thickener during dissolution of the thickener in the solvent by the dissolving device.

8. The apparatus for manufacturing an electricity storage material containing at least a thickener and an active material according to claim 4 , wherein,
the dissolution-rate-to-solubility determining device is connected to a memory which stores the conductivity of the solution of the thickener during dissolution of the thickener in the solvent by the dissolving device.

Assignees

• Jtekt Corp

Inventors

• Mio Takumi
• Fukaya Yoshifumi
• Fujii Takafumi

Classifications

• B01F15/00246

  Operations & Transport · mapped topic

• B01F2215/0098

  Operations & Transport · mapped topic

• B01F15/00227

  Operations & Transport · mapped topic

• B01F11/0291

  Operations & Transport · mapped topic

• H01M4/62 Primary

  Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title