Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Katsutoshi Takeda
Katsutoshi Takeda, Moriguchi-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090119908 | METHOD FOR PRODUCING POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR PRODUCING NON-AQUEOUS ELECTROLYTE SECONDARY CELL - A method for producing with a high yield a high performance non-aqueous electrolyte secondary cell with a reduced cost is provided. The method includes the steps of: a baking step of baking a positive electrode active material precursor containing a lithium source and a nickel source in order to render the positive electrode active material precursor a lithium nickel composite oxide; a measuring step of measuring the amount of carbon dioxide gas occurring when the lithium nickel composite oxide is heated to 200° C. or higher and 1500° C. or lower in an inactive gas atmosphere; a selecting step of selecting a lithium nickel composite oxide satisfying the following formulas: | 05-14-2009 |
| 20090120163 | METHOD FOR JUDGING QUALITY OF LITHIUM NICKEL COMPOSITE OXIDE AND POSITIVE ELECTRODE USING LITHIUM NICKEL COMPOSITE OXIDE - A positive electrode active material quality judgment method that can easily and accurately judge the quality of a positive electrode active material used in a non-aqueous electrolyte secondary cell without having to complete the positive electrode. The positive electrode active material quality judgment method includes: heating a positive electrode active material mainly made of a lithium nickel composite oxide to a temperature x (° C.) of 200° C. or higher and 1500° C. or lower; measuring the amount of carbon dioxide gas occurring from the heating; and the positive electrode active material as a suitable positive electrode active material when the positive electrode active material satisfies formulas 1 and 2: | 05-14-2009 |
| 20100248040 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A non-aqueous electrolyte secondary battery is provided that has a high discharge capacity and in which the structure is stable even when lithium is extracted to a high potential so that good cycle performance can be obtained. | 09-30-2010 |
Katsutoshi Takeda, Tokushima JP
| Patent application number | Description | Published |
|---|---|---|
| 20100104944 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A mixed positive electrode active material is used. The mixed positive electrode active material is obtained by mixing a layered oxide whose initial charge-discharge efficiency when lithium metal is used for a counter electrode is less than 100% (hereinafter referred to as a first layered oxide) and a layered oxide whose initial charge-discharge efficiency is 100% or more (hereinafter referred to as a second layered oxide). Examples of the first layered oxide include Li | 04-29-2010 |
| 20100129715 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material is made of sodium containing oxide. The sodium containing oxide contains Na | 05-27-2010 |
| 20100173202 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF FORMING POSITIVE ELECTRODE - A positive electrode active material is formed of a lithium containing layered oxide. The lithium containing layered oxide contains either or both of Li | 07-08-2010 |
Katsutoshi Takeda, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20080261115 | Non-aqueous electrolyte secondary battery and positive electrode - A non-aqueous electrolyte secondary battery includes a positive electrode having a positive electrode mixture, a negative electrode, and a non-aqueous electrolyte. The positive electrode mixture contains as a positive electrode active material Li | 10-23-2008 |
| 20090011335 | Positive electrode active material, method of manufacturing the positive electrode active material, and non-aqueous electrolyte secondary battery - A high-capacity positive electrode active material is provided that enables a non-aqueous electrolyte secondary battery to have excellent load characteristics and high initial charge-discharge efficiency. A non-aqueous electrolyte secondary battery has a positive electrode, a negative electrode, and a non-aqueous electrolyte, and performs charge and discharge by transferring lithium ions between the positive electrode and the negative electrode. The positive electrode has a positive electrode mixture and a positive electrode current collector. The positive electrode mixture contains a positive electrode active material, a conductive agent, and a binder agent (binder). The positive electrode active material includes Li | 01-08-2009 |