| Patent application number | Description | Published |
|---|
| 20090263721 | LITHIUM SECONDARY BATTERY AND PRODUCTION METHOD OF THE SAME - To provide a lithium secondary battery which suppresses a decrease in the charge and discharge efficiency during a battery storage test and which is excellent in maintaining the battery capacity after the storage test. There are disclosed a nonaqueous lithium battery, comprising: a positive electrode active material comprising a lithium-containing oxide capable of inserting and detaching lithium ions; a negative electrode active material comprising a carbon material capable of inserting and detaching lithium ions; and an electrolytic solution containing a lithium ion, wherein the surface of the negative electrode active material after initializing charging is coated with a compound derived from vinylene carbonate, and wherein a weight power density of the lithium battery is no less than 100 Wh/kg, and a method of producing a nonaqueous lithium battery comprising a step of sealing a positive electrode active material, a negative electrode active material, and a nonaqueous electrolytic solution using a sealed container, wherein a predetermined amount of vinylene carbonate is added into the nonaqueous electrolytic solution, and the initializing charging is carried out to form a coating on the surface of the negative electrode active material, the coating being derived from the vinylene carbonate. | 10-22-2009 |
| 20100072949 | Charging/Discharging Control Unit for Lithium Secondary Battery - In a charging/discharging unit provided with: a lithium secondary battery, a voltage detecting sensor for detecting a voltage and a current detecting sensor; the charging/discharging control unit is further provided with a controller, and a discharging element for performing a constant voltage discharging operation of 3 V. A voltage, V | 03-25-2010 |
| 20100297501 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY USING THE SAME - The objects of the present invention are to provide a negative electrode for lithium secondary battery which can simultaneously satisfy high energy density and good charge/discharge cyclic characteristics, and to provide a lithium secondary battery which uses the negative electrode.
| 11-25-2010 |
| 20110059351 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery comprising a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material, a separator, an electrolyte, and a battery can for enclosing these, wherein the positive electrode active material comprises manganese spinel and a layer-type lithium manganese oxide, and the electrolyte comprises vinylene carbonate and unsaturated sultone. | 03-10-2011 |
