US 12,249,692 B2
Mixture of potassium and lithium salts, and use thereof in a battery
Grégory Schmidt, Pierre-Benite (FR)
Assigned to ARKEMA FRANCE, Colombes (FR)
Appl. No. 16/637,929
Filed by Arkema France, Colombes (FR)
PCT Filed Jan. 29, 2019, PCT No. PCT/FR2019/050196
§ 371(c)(1), (2) Date Feb. 10, 2020,
PCT Pub. No. WO2019/145662, PCT Pub. Date Aug. 1, 2019.
Claims priority of application No. 1850664 (FR), filed on Jan. 29, 2018.
Prior Publication US 2020/0212488 A1, Jul. 2, 2020
Int. Cl. H01M 10/0568 (2010.01); H01G 11/62 (2013.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01); H01M 4/02 (2006.01)
CPC H01M 10/0568 (2013.01) [H01G 11/62 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0025 (2013.01)] 11 Claims
 
1. A mixture comprising:
from 99% to 99.9999% by weight of at least one lithium salt A selected from the group consisting of LiPF6; LiBF4; CH3COOLi; CH3SO3Li; CF3SO3Li; CF3COOLi; Li2B12F12; LiBC4O8; a salt of formula (I) below: R1—SO2—NLi—SO2—R2 (I) wherein R1 and R2 represent, independently of one another, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, C8F17, or C9F19; a salt of formula (II) below:

OG Complex Work Unit Chemistry
wherein Rf represents F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, C8F17, or C9F19; and mixtures thereof;
from 1 ppm to 10 000 ppm by weight of at least one potassium salt B selected from the group consisting of KPF6; KBF4; CH3SO3K; CF3SO3K; K2B12F12; KBC4O8; a salt of formula (III) below: R3—SO2—NK—SO2—R4 (III) wherein R3 and R4 represent, independently of one another, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, C8F17, or C9F19; a salt of formula (IV) below:

OG Complex Work Unit Chemistry
wherein Rp represents F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, C8F17, or CF19; and mixtures thereof.