Lithium-ion rechargeable battery, battery structure of lithium-ion rechargeable battery and method for producing lithium-ion rechargeable battery

A lithium-ion rechargeable battery comprising:

• a substrate having conductivity;
• a front surface battery part including a front surface first polarity layer laminated on a front surface side of the substrate to occlude and release a lithium ion with a first polarity, a front surface solid electrolyte layer laminated on the front surface first polarity layer and including an inorganic solid electrolyte having lithium-ion conductivity, and a front surface second polarity layer laminated on the front surface solid electrolyte layer to occlude and release a lithium ion with a second polarity, which is opposite to the first polarity;
• a back surface battery part including a back surface first polarity layer laminated on a back surface side of the substrate to occlude and release a lithium ion with the first polarity, a back surface solid electrolyte layer laminated on the back surface first polarity layer and including an inorganic solid electrolyte having lithium-ion conductivity, and a back surface second polarity layer laminated on the back surface solid electrolyte layer to occlude and release a lithium ion with the second polarity;
• and
• a housing portion including a metal layer and a resin layer laminated on the metal layer to form an exposed portion where a part of the metal layer is exposed, and housing the front surface battery portion and the back surface battery portion inside thereof, the metal layer being electrically connected to the front surface second polarity layer and the back surface second polarity layer at the exposed portion.

A battery structure of a lithium-ion rechargeable battery comprising:

• a substrate having conductivity;
• a front surface battery part including a front surface first polarity layer laminated on a front surface side of the substrate to occlude and release a lithium ion with a first polarity, a front surface solid electrolyte layer laminated on the front surface first polarity layer and including an inorganic solid electrolyte having lithium-ion conductivity, and a front surface second polarity layer laminated on the front surface solid electrolyte layer to occlude and release a lithium ion with a second polarity, which is opposite to the first polarity;
• and
• a back surface battery part including a back surface first polarity layer laminated on a back surface side of the substrate to occlude and release a lithium ion with the first polarity, a back surface solid electrolyte layer laminated on the back surface first polarity layer and including an inorganic solid electrolyte having lithium-ion conductivity, and a back surface second polarity layer laminated on the back surface solid electrolyte layer to occlude and release a lithium ion with the second polarity.

A method for producing a lithium-ion rechargeable battery, comprising:

• a process of depositing, on a front surface of a substrate, a front surface first polarity layer that occludes and releases a lithium ion with a first polarity and depositing, on a back surface of the substrate, a back surface first polarity layer that occludes and releases a lithium ion with the first polarity;
• a process of depositing, on the front surface first polarity layer, a front surface solid electrolyte layer that contains an inorganic solid electrolyte having lithium-ion conductivity and depositing, on the back surface first polarity layer, a back surface solid electrolyte layer that contains an inorganic solid electrolyte having lithium-ion conductivity;
• and
• a process of depositing, on the front surface solid electrolyte layer, a front surface second polarity layer that occludes and releases a lithium ion with a second polarity, which is opposite to the first polarity, and depositing, on the back surface solid electrolyte layer, a back surface second polarity layer that occludes and releases a lithium ion with the second polarity.