Secondary battery
AssigneeNGK Insulators, Ltd.
InventorsYukihisa Takeuchi, Iwao Ohwada, Yukinobu Yura
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Abstract
The present invention provides a secondary battery, including a positive electrode plate composed of an inorganic material including a positive electrode active material in an oxide form and having a thickness of 25 μm or more; a negative electrode plate composed of an inorganic material including a negative electrode active material in an oxide form and having a thickness of 25 μm or more; and an inorganic solid electrolyte layer, wherein the secondary battery is chargeable and dischargeable at a temperature of 100° C. or more. The present invention can provide rapid charge/discharge at a high cycle capacity retention and increase the capacity of the secondary battery.
Claims14
A secondary battery comprising:
- a positive electrode plate composed of an inorganic material comprising a positive electrode active material in an oxide form and having a thickness of 25 μm or more;
- a negative electrode plate composed of an inorganic material comprising a negative electrode active material in an oxide form and having a thickness of 25 μm or more;
- and
- an inorganic solid electrolyte layer,
- wherein the secondary battery is charged and discharged at a temperature of 100° C. or more;
- wherein the positive electrode plate is a sintered oriented positive electrode plate comprising primary particles composed of a lithium composite oxide, and
- wherein the primary particles are oriented at an average orientation angle of 5° or more and 30° or less to a plane of the positive electrode plate.
Dependencies are inferred from the claim text.