Perovskite battery and electric device

Patent metadata

Field	Value
Publication number	US-2025374743-A1
Application number	US-202519302955-A
Country	US
Kind code	A1
Filing date	Aug 18, 2025
Priority date	Jun 30, 2023
Publication date	Dec 4, 2025
Grant date	—

Abstract

A perovskite battery and an electric device are disclosed. The perovskite battery includes a substrate; a perovskite layer, where the perovskite layer is disposed on one side of the substrate; a passivation layer, where the passivation layer is disposed on at least one side of the perovskite layer, the passivation layer includes a passivation material, the passivation material includes anions and cations, a volume of the anions is V 1 , a volume of the cations is V 2 , and V 1 >V 3 >V 2 , where V 3 is a volume of a largest defect in the perovskite layer; and an electrode layer, where the electrode layer is disposed on a side of the passivation layer facing away from the perovskite layer.

First claim

What is claimed is:

1 . A perovskite battery, comprising:
a substrate; a perovskite layer, wherein the perovskite layer is disposed on one side of the substrate; a passivation layer, wherein the passivation layer is disposed on at least one side of the perovskite layer, the passivation layer comprises a passivation material, the passivation material comprises anions and cations, a volume of the anions is V 1 , a volume of the cations is V 2 , and V 1 >V 3 >V 2 , wherein V 3 is a volume of a largest defect in the perovskite layer; and an electrode layer, wherein the electrode layer is disposed on a side of the passivation layer facing away from the perovskite layer.

2 . The perovskite battery according to claim 1 , wherein the number of atoms, other than hydrogen atoms, in one of the anions of the passivation material is 3 to 24, and the number of atoms, other than hydrogen atoms, in one of the cations of the passivation material is 1 to 5.

3 . The perovskite battery according to claim 1 , wherein the number of atoms, other than hydrogen atoms, in one of the anions of the passivation material is 8 to 15, and the number of atoms, other than hydrogen atoms, in one of the cations of the passivation material is 2 to 4.

4 . The perovskite battery according to claim 1 , wherein the anions comprise A 1 -R-A 2 , wherein A 1 comprises one or more of hydrogen, halogen, benzene ring, heterocyclic ring, or fused ring, R comprises one or more of an alkyl chain with 0 to 10 carbons or an alkenyl group with 2 to 10 carbons, and A 2 comprises one or more of carboxylate, sulfonate, phosphonate, or borate.

5 . The perovskite battery according to claim 4 , wherein one or more of the following conditions are satisfied:
A 1 comprises one or more of the benzene ring or the heterocyclic ring; R comprises one or more of an alkyl chain with 2 to 5 carbons or an alkenyl group with 2 to 5 carbons; and A 2 comprises one or more of carboxylate, sulfonate, or phosphonate.

6 . The perovskite battery according to claim 1 , wherein the anions comprise one or more of N element, O element, P element, or S element.

7 . The perovskite battery according to claim 1 , wherein the anions comprise one or more of benzene ring or alkyl group.

8 . The perovskite battery according to claim 1 , wherein the cations comprise one or more of organic cations, Li + , Na + , K + , Rb + , or Cs + .

9 . The perovskite battery according to claim 8 , wherein the organic cations comprise one or more of methylammonium cation, ethylammonium cation, propylammonium cation, butylammonium cation, pentylammonium cation, hexylammonium cation, formamidinium cation, imidazolium cation, or guanidinium cation.

10 . The perovskite battery according to claim 1 , wherein the cations comprise methylammonium cation.

11 . The perovskite battery according to claim 1 , wherein the passivation material comprises one or more of methylammonium phenylpropionate, cesium 1-piperidinepropionate, or formamidinium 2-phenylethane-1-sulfonate.

12 . The perovskite battery according to claim 1 , wherein a thickness of the passivation layer is 0.1 nm to 10 nm.

13 . The perovskite battery according to claim 1 , wherein the perovskite battery satisfies one or more of the following conditions:
a material of the electrode layer comprises one or more of silver, copper, carbon, gold, aluminum, indium tin oxide, aluminum-doped zinc oxide, boron-doped zinc oxide, or indium zinc oxide; the material of the electrode layer comprises copper; a material of the perovskite layer comprises one or more of PBX 3 or P 2 CDX 6 , wherein P comprises one or more of organic cations, Li + , Na + , K + , Rb + , or Cs + ; B comprises one or more of Pb 2+ , Sn 2+ , Be 2+ , Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ , Zn 2+ , Ge 2+ , Fe 2+ , Co 2+ , Cu 2+ , and Ni 2+ ; optionally, B comprises one or more of Pb 2+ or Sn 2+ ; C comprises one or more of Cs + , Ag + , K + , and Ru + ; optionally, C comprises Ag + ; D comprises one or more of Bi 3+ , Ni 3+ , Fe 3+ , Cu 3+ , Sb 3+ , or In 3+ ; and X comprises one or more of Cl − , Br − , or I − ; the perovskite layer comprises I − ; a bandgap of the perovskite layer is 1.20 eV to 2.30 eV; and a thickness of the perovskite layer is 200 nm to 1000 nm.

14 . The perovskite battery according to claim 1 , further comprising an electron transport layer, wherein the electron transport layer is disposed between the passivation layer and the electrode layer.

15 . The perovskite battery according to claim 14 , wherein a material of the electron transport layer comprises one or more of fullerene and derivatives thereof, tin dioxide and derivatives thereof, or zinc oxide and derivatives thereof.

16 . The perovskite battery according to claim 1 , further comprising a hole transport layer, wherein the hole transport layer is disposed between the passivation layer and the electrode layer.

17 . The perovskite battery according to claim 16 , wherein a material of the hole transport layer comprises one or more of nickel oxide and derivatives thereof, poly[bis(4-phenyl) (2,4,6-trimethylphenyl)amine] and derivatives thereof, poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) and derivatives thereof, 2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene and derivatives thereof, or poly-3-hexylthiophene and derivatives thereof.

18 . An electric device, comprising the perovskite battery according to claim 1 .

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Liang Weifeng
• Tu Bao
• Jia Boyu
• Guo Wenming
• Luan Bo
• Chang Yuhang
• Guo Yongsheng
• Ouyang Chuying

Classifications

• H10K85/50 Primary

  Organic perovskites; Hybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3 · CPC title

• H10K30/86

  Layers having high hole mobility, e.g. hole-transporting layers or electron-blocking layers · CPC title

• H10K30/50

  Photovoltaic [PV] devices · CPC title

• H10K30/81

  Electrodes · CPC title

• H10K30/85

  Layers having high electron mobility, e.g. electron-transporting layers or hole-blocking layers · CPC title