公开(公告)号：WO2021194743A1

公开(公告)日：2021-09-30

申请号：PCT/US2021/021607

申请日：2021-03-10

Applicant: ENEVATE CORPORATION

Inventor： PERERA, Sanjaya, D. ,  JI, Liwen ,  CHANG, Jeremy ,  PARK, Benjamin

IPC: H01M4/60 ,  H01M4/134 ,  H01M4/48 ,  H01M4/583 ,  H01M10/052 ,  H01M10/054 ,  H01M2004/028 ,  H01M4/463 ,  H01M4/525 ,  H01M4/62

Abstract: Systems and methods for aromatic macrocyclic compounds (Phthalocyanines) as cathode additives for inhibition of transition metal dissolution and stable solid electrolyte interphase formation may include an anode, an electrolyte, and a cathode, where the cathode comprises an active material and a phthalocyanine additive, the additive being coordinated with different metal cationic center and functional groups. The active material may comprise one or more of: nickel cobalt aluminum oxide, nickel cobalt manganese oxide, lithium iron phosphate, lithium cobalt oxide, and lithium manganese oxide, Ni-rich layered oxides LiNi1-xMxO2 where M = Co, Mn, or Al, Li-rich xLi2MnO3(1-x)LiNiaCobMncO2, Li-rich layered oxides LiNi1+xM1-xO2 where M = Co, Mn, or Ni, and spinel oxides LiNi0.5Mn1.5O4. The phthalocyanine additive may include one or more of: cobalt hexadecafluoro phthalocyanine (Co-Pc-F), dilithium phthalocyanine (Li-Pc), cobalt(II) phthalocyanine, nickel(II) phthalocyanine-tetrasulfonic acid tetrasodium salt, titanium(IV) phthalocyanine dichloride, manganese(II) phthalocyanine, zinc phthalocyanine, aluminum phthalocyanine chloride, Iron(II) phthalocyanine, and silicon phthalocyanine dichloride.

公开(公告)号：WO2021126565A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/063449

申请日：2020-12-04

Applicant: ENEVATE CORPORATION

Inventor： ANSARI, Younes ,  CHANG, Jeremy ,  PARK, Benjamin

IPC: H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0566 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  H01M4/663

Abstract: Systems and methods for carbon compositions as conductive additives for dense and conductive cathodes may include a cathode, an electrolyte, and a cathode active material. The active material may comprise an anode, an electrolyte, and a cathode comprising an active material. The active material may comprise 0D conductive carbon particles with nanoscale structure in three dimensions, and 1D conductive carbon particles with nanoscale structure in two dimensions, where the 1D carbon particles have a diameter of less than 120 nm and a surface area of 30 m2/g. The 0D and 1D particles may comprise between 1% and 10% of the active material. The 1D conductive carbon particles may comprise carbon nanotubes, carbon nanofibers, and/or vapor grown carbon fibers. The cathode active material may comprise nickel cobalt aluminum oxide (NCA), nickel cobalt manganese oxide, lithium iron phosphate, lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, or mixtures and combinations thereof.

公开(公告)号：WO2021113448A1

公开(公告)日：2021-06-10

申请号：PCT/US2020/063019

申请日：2020-12-03

Applicant: ENEVATE CORPORATION

Inventor： JI, Liwen ,  PARK, Benjamin ,  CHANG, Jeremy

IPC: H01M10/052 ,  H01M10/0569 ,  H01M10/0567

Abstract: Systems and methods for sulfur-containing chemicals as cathode additives for silicon-based lithium ion batteries may include a silicon-based anode, an electrolyte, and a cathode. The cathode may include an active material and a sulfur-containing additive. The cathode active material may include one or more of nickel cobalt aluminum oxide (NCA), nickel cobalt manganese oxide (NCM), lithium iron phosphate (LFP), lithium cobalt oxide (LCO), and lithium manganese oxide (LMO). The sulfur-containing additive may include elemental sulfur and/or Li2S. The sulfur-containing additive may include one or more of lithium polysulfides (Li2Sn, where n = 2-8), polysulfides, and organic polysulfides. The sulfur-containing additive may include one or more of metal sulfides, transition metal polysulfide complexes, S-containing organic polymers or copolymer, polymeric sulfur, and transition metal sulfides. The sulfur-containing additive may include 5% or less by weight of the active material, or 1% or less by weight of the active material.