US 12,438,243 B2
Electrochemical device and electronic device
Kun Yan, Ningde (CN); Yu Ding, Ningde (CN); Yibo Zhang, Ningde (CN); and Nan Zhang, Ningde (CN)
Assigned to NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde (CN)
Filed by Ningde Amperex Technology Limited, Ningde (CN)
Filed on Mar. 31, 2022, as Appl. No. 17/709,943.
Application 17/709,943 is a continuation of application No. PCT/CN2020/099510, filed on Jun. 30, 2020.
Prior Publication US 2022/0223983 A1, Jul. 14, 2022
Int. Cl. H01M 10/0585 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/66 (2006.01); H01M 50/193 (2021.01); H01M 50/538 (2021.01); H01M 4/02 (2006.01)
CPC H01M 50/538 (2021.01) [H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/669 (2013.01); H01M 50/193 (2021.01); H01M 2004/029 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electrochemical device, comprising:
a bipolar current collector,
wherein the bipolar current collector is hermetically connected to an outer package, cavities independent of each other are formed on two opposite sides of the bipolar current collector, an electrode assembly and an electrolytic solution are encapsulated in each cavity, an electrode active material is disposed on at least one surface of the bipolar current collector, and the electrode assemblies in adjacent cavities are connected in series, and
wherein a thickness of the electrode active material on the at least one surface of the bipolar current collector is in a range of 30 μm to 120 μm.