Title:
PRELITHIATED FILM AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/228003
Kind Code:
A1
Abstract:
Disclosed by the present invention are a prelithiated film and a preparation method therefor and an application thereof. The prelithiated film comprises: a 1um-50um base film and a 0.02um-100um prelithiated coating coated on the base film; the prelithiated coating includes: 1wt%-99.99wt% of a prelithiated material, 0wt%-98.99wt% of a coating material, 0.01wt%-10wt% of a binder, 0wt%-10wt% of a conductive additive material, 0wt%-2wt% of a dispersing agent and 0wt%-2wt% of an aid. The prelithiated material is a material that can produce an electrochemical reaction to release lithium ions under voltage control. The prelithiated material specifically includes: Li xM1 yA z, Li xM2 y(PO 4) z, Li xM2 y(SiO 4) z, Li 2S, and Li xM1 yS z, wherein x, y and z are integers or non-integers and satisfy the balance of electrovalence of a chemical formula; M1 is one or a combination of a metallic element, a transition metal element, a rare earth element, an alkali metal, an IVA group element; M2 is one or a combination of a metal element, a transition metal element, a rare earth element, an alkali metal, and an IVA group element; and A is one or a combination of O, F, Cl, S and N elements.
Inventors:
YAN ZHAO (CN)
LUO FEI (CN)
LI HONG (CN)
LUO FEI (CN)
LI HONG (CN)
Application Number:
PCT/CN2019/077117
Publication Date:
December 05, 2019
Filing Date:
March 06, 2019
Export Citation:
Assignee:
TIANMULAKE EXCELLENT ANODE MAT CO LTD (CN)
INST PHYSICS CAS (CN)
INST PHYSICS CAS (CN)
International Classes:
H01M4/13; H01M2/16; H01M4/139
Foreign References:
| CN106910860A | 2017-06-30 | |||
| CN106684291A | 2017-05-17 | |||
| CN108565396A | 2018-09-21 | |||
| CN105098188A | 2015-11-25 | |||
| CN105702913A | 2016-06-22 |
Attorney, Agent or Firm:
RECHWISE PATENT & TRADEMARK FIRM (CN)
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