US 12,113,175 B2
Electrolyte for supercapacitor and high-power battery use
Andras Kovacs, Espoo (FI); Tapani Alasaarela, Espoo (FI); David Lloyd, Espoo (FI); and David Brown, Helsinki (FI)
Assigned to BROADBIT BATTERIES OY, Espoo (FI)
Appl. No. 16/494,879
Filed by BroadBit Batteries Oy, Espoo (FI)
PCT Filed Mar. 14, 2018, PCT No. PCT/FI2018/050182
§ 371(c)(1), (2) Date Sep. 17, 2019,
PCT Pub. No. WO2018/167365, PCT Pub. Date Sep. 20, 2018.
Claims priority of application No. 20175239 (FI), filed on Mar. 17, 2017.
Prior Publication US 2020/0227786 A1, Jul. 16, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/0569 (2010.01); H01G 11/60 (2013.01); H01G 11/62 (2013.01); H01M 10/0568 (2010.01)
CPC H01M 10/0569 (2013.01) [H01G 11/60 (2013.01); H01G 11/62 (2013.01); H01M 10/0568 (2013.01); H01M 2300/0028 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electrochemical cell comprising:
a nitrile-based solvent based electrolyte, wherein
the electrochemical cell includes an electrolyte salt that comprises NaClO4, the electrolyte salt concentration in a discharge state is greater than 1.5,
the electrolyte salt has a maximum electrolyte conductivity at a discharge state Molar concentration greater than 1; wherein
i) the electrolyte salt further comprises a sodium containing co-salt having a co-salt ratio between 0.5:1 and 32:1; and/or
ii) the electrolyte salt concentration in the discharge state is less than 3.5.