US 12,080,852 B2
Secondary battery
Kyoung Hwan Kim, Yongin-si (KR); and Cheoul Whan Kim, Yongin-si (KR)
Assigned to SAMSUNG SDI CO., LTD., Yongin-si (KR)
Appl. No. 16/967,519
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
PCT Filed Nov. 14, 2019, PCT No. PCT/KR2019/015565
§ 371(c)(1), (2) Date Aug. 5, 2020,
PCT Pub. No. WO2020/105959, PCT Pub. Date May 28, 2020.
Claims priority of application No. 10-2018-0142844 (KR), filed on Nov. 19, 2018.
Prior Publication US 2021/0234202 A1, Jul. 29, 2021
Int. Cl. H01M 10/0583 (2010.01); H01M 10/052 (2010.01)
CPC H01M 10/0583 (2013.01) [H01M 10/052 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A secondary battery comprising:
an electrode assembly including a plurality of first electrode plates and a plurality of second electrode plates, alternately stacked; and
a case for accommodating the electrode assembly,
wherein:
the plurality of first electrode plates have a polarity different from a polarity of the plurality of second electrode plates,
the plurality of first electrode plates includes at least one outer first electrode plate located at an outermost part of the electrode assembly, and a plurality of inner first electrode plates located inside the electrode assembly, and the at least one outer first electrode plate is smaller than each inner first electrode plate of the plurality of inner first electrode plates and smaller than each second electrode plate of the plurality of second electrode plates,
the plurality of inner first electrode plates are of the same size,
the plurality of second electrode plates are of the same size, and
each inner first electrode plate of the plurality of inner first electrode plates is smaller than each second electrode plate of the plurality of second electrode plates.
 
7. A secondary battery comprising:
an electrode assembly including a plurality of first electrode plates and a plurality of second electrode plates, alternately stacked; and
a case for accommodating the electrode assembly,
wherein:
the plurality of first electrode plates have a polarity different from a polarity of the plurality of second electrode plates,
the plurality of first electrode plates includes at least one outer first electrode plate located at an outermost part of the electrode assembly, and a plurality of inner first electrode plates located inside the electrode assembly, and at least one end of the at least one outer first electrode plate is located further inward than one end of each inner first electrode plate of the plurality of inner first electrode plates,
the plurality of inner first electrode plates are of the same size,
the plurality of second electrode plates are of the same size, and
each inner first electrode plate of the plurality of inner first electrode plates is smaller than each second electrode plate of the plurality of second electrode plates.