Patent application number | Description | Published |
20080226988 | Nonaqueous electrolyte secondary battery - To obtain a nonaqueous electrolyte secondary battery which has excellent storage characteristics at elevated temperatures, and can inhibit an increase in battery resistance and a reduction in charge-discharge efficiency after storage, and can enhance safety. A nonaqueous electrolyte secondary battery having a negative electrode including a negative active material, a positive electrode including a positive active material, a nonaqueous electrolyte and a separator placed between the negative electrode and the positive electrode, wherein an inorganic particle layer including an inorganic particle which does not occlude and release lithium, a conductive material and a binder is placed on the surface of the negative electrode, and an electrically conducting path contacting with the surface of the negative electrode is formed in the inorganic particle layer by the conductive material. | 09-18-2008 |
20080241666 | Battery unit - A battery unit has a plurality of non-aqueous electrolyte secondary batteries connected in series, wherein at least two types of non-aqueous electrolyte secondary batteries (A | 10-02-2008 |
20080274410 | Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery is provided that remarkably improves battery reliability by quickly lowering the potential of the positive electrode while preventing separator shrinkage at high temperatures. A separator has on its surface a shrinkage-prevention-layer formed portion ( | 11-06-2008 |
20090081546 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PREPARING THE SAME, AND POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode employs a positive electrode active material wherein oxide containing Al and/or hydroxide containing Al having a protruding-shape is uniformly distributed and adhered to the surface of a positive electrode active material particle. | 03-26-2009 |
20090246630 | Positive electrode for non-aqueous electrolyte battery and non-aqueous electrolyte battery - A positive electrode for a non-aqueous electrolyte battery includes a positive electrode active material layer containing at least a positive electrode active material and a binder and a coating layer containing a polymer provided on the positive electrode active material layer, wherein the polymer has a block chain A composed of a random copolymer containing a repeating unit (I) represented by formula (I), a repeating unit (II) represented by formula (II), and a block chain B containing a repeating unit (III) represented by formula (III) | 10-01-2009 |
20090317718 | Method of manufacturing positive electrode for non-aqueous electrolyte battery, slurry used therefor, and non-aqueous electrolyte battery - A method of manufacturing a positive electrode for a non-aqueous electrolyte battery is provided. The positive electrode has a current collector and an active material layer formed on the current collector. The method includes: coating a slurry onto the current collector, the slurry having a pH of from 5 to 9 and containing a positive electrode active material, water as a dispersion medium, carboxymethylcellulose, and a pH adjuster; and drying the coated slurry to form the active material layer. | 12-24-2009 |
20100273052 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A nonaqueous electrolyte secondary battery using electrodes including a mixture layer formed on a current collector by using an aqueous slurry is provided to enable efficient battery production, have a high adhesion strength in the electrode and enable improved battery performance. The nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte, wherein at least one of the positive and negative electrodes is an electrode obtained by: forming a precoat layer | 10-28-2010 |
20110117434 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, FABRICATION METHOD THEREOF, POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material for non-aqueous electrolyte secondary battery is improved so that a reaction between the positive electrode active material and a non-aqueous electrolyte is restricted in a case where charging voltage is increased. | 05-19-2011 |