Method and system for aromatic macrocyclic compounds (phthalocyanines) as cathode additives for inhibition of transition metal dissolution and stable solid electrolyte interphase formation
US11456457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Jul 23, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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−O2 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…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.