US 11,942,270 B2
Electricity storage device with sintered body
Masayuki Kouzu, Nagaokakyo (JP); Takeshi Sodeoka, Nagaokakyo (JP); Syouta Ikebe, Nagaokakyo (JP); Mami Aoki, Nagaokakyo (JP); Tomonori Ito, Nagaokakyo (JP); and Tadahiro Minamikawa, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Jan. 21, 2022, as Appl. No. 17/581,283.
Application 17/581,283 is a continuation of application No. PCT/JP2020/016853, filed on Apr. 17, 2020.
Claims priority of application No. 2019-144845 (JP), filed on Aug. 6, 2019.
Prior Publication US 2022/0148821 A1, May 12, 2022
Int. Cl. H01G 11/24 (2013.01); H01G 11/12 (2013.01); H01G 11/14 (2013.01); H01G 11/52 (2013.01); H01G 11/58 (2013.01); H01G 11/68 (2013.01); H01G 11/80 (2013.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 10/0585 (2010.01); H01M 50/117 (2021.01); H01M 50/124 (2021.01); H01M 50/434 (2021.01); H01M 50/636 (2021.01)
CPC H01G 11/24 (2013.01) [H01G 11/12 (2013.01); H01G 11/14 (2013.01); H01G 11/52 (2013.01); H01G 11/58 (2013.01); H01G 11/68 (2013.01); H01G 11/80 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 50/117 (2021.01); H01M 50/124 (2021.01); H01M 50/434 (2021.01); H01M 50/636 (2021.01)] 20 Claims
OG exemplary drawing
 
1. An electricity storage device comprising:
an internal element having:
a first main surface and a second main surface that each extend along a length direction and a width direction and face each other in a thickness direction,
a first side surface and a second side surface that each extend along the length direction and the thickness direction and that face each other in the width direction,
a first end surface and a second end surface that each extend along the width direction and the thickness direction and that face each other in the length direction,
a first internal electrode that extends out to the first end surface,
a second internal electrode that extends out to the second end surface,
a separator layer disposed between the first internal electrode and the second internal electrode, and
an electrolytic solution;
a first end surface electrode disposed on the first end surface and connected to the first internal electrode; and
a second end surface electrode disposed on the second end surface and connected to the second internal electrode,
wherein the first internal electrode, the second internal electrode, the separator layer, the first end surface electrode, and the second end surface electrode are integrally sintered with each other to form a sintered body, and
wherein the first internal electrode does not extend out to the second end surface and the second internal electrode does not extend out to the first end surface.