US 12,009,519 B2Granted

Cathode active material, preparation method thereof, cathode including the same, and secondary battery

AssigneeSamsung Electronics Co., Ltd.

InventorsJoonhee Kim, Sangbok Ma, Jonghoon Ka

Life of this patent

Estimating the term…

Abstract

A cathode active material includes a compound represented by Formula 1: Lix(Co1−yMy)z(P2O7)4 Formula 1 wherein in Formula 1, 5≤x≤7, 0.01≤y≤0.1, and 4≤z≤6, and M is a Group 3 to 11 element belonging to 5th and 6th periods in the Periodic Table of the elements, or a combination thereof.

Claims17

Dependent claims

A cathode active material comprising a compound

represented by Formulas 2a to 2r:
Lix(Co1−yNby)z(P2O7)4 Formula 2a
wherein in Formula 2a, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yMoy)z(P2O7)4 Formula 2b
wherein in Formula 2b, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yTay)z(P2O7)4 Formula 2c
wherein in Formula 2c, 5.5≤x≤6.5, 0.01≤00.05, and 4.8≤z≤5.2,
Lix(Co1−yWy)z(P2O7)4 Formula 2d
wherein in Formula 2d, 5.5≤x≤6.5, 0.01≤00.05, and 4.8≤z≤5.2,
Lix(Co1−yYy)z(P2O7)4 Formula 2e
wherein in Formula 2e, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yLay)z(P2O7)4 Formula 2f
wherein in Formula 2f, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yZry)z(P2O7)4 Formula 2g
wherein in Formula 2g, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yHfy)z(P2O7)4 Formula 2h
wherein in Formula 2h, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yTCy)z(P2O7)4 Formula 2i
wherein in Formula 2i, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yRey)z(P2O7)4 Formula 2j
wherein in Formula 2j, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yRuy)z(P2O7)4 Formula 2k
wherein in Formula 2k, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yOs)z(P2O7)4 Formula 2l
wherein in Formula 2l, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yRhy)z(P2O7)4 Formula 2m
wherein in Formula 2m, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yIry)z(P2O7)4 Formula 2n
wherein in Formula 2n, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yPdy)z(P2O7)4 Formula 2o
wherein in Formula 2o, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yPty)z(P2O7)4 Formula 2p
wherein in Formula 2p, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yAgy)z(P2O7)4 Formula 2q
wherein in Formula 2q, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2, or
Lix(Co1−yAuy)z(P2O7)4 Formula 2r
wherein in Formula 2r, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2.

34 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/482,684Filed 23 Sep 2021
Priority: KR 10-2021-005135020 Apr 2021
Published: US 2022/0336803 A120 Oct 2022
Granted: 11 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01M 4/525
Of nickel, cobalt or iron: of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g.…
H01M 4/0471
Processes of manufacture in general: involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal…
H01M 4/366
Composites: as layered products
H01M 10/0562
The electrolyte being constituted of inorganic materials only: solid materials

Family

US 2022/0336803 A1Pre-grant publication · published 20 Oct 2022
US 12,009,519 B2This patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

A cathode active material comprising a compound

represented by Formulas 2a to 2r:
Lix(Co1−yNby)z(P2O7)4 Formula 2a
wherein in Formula 2a, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yMoy)z(P2O7)4 Formula 2b
wherein in Formula 2b, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yTay)z(P2O7)4 Formula 2c
wherein in Formula 2c, 5.5≤x≤6.5, 0.01≤00.05, and 4.8≤z≤5.2,
Lix(Co1−yWy)z(P2O7)4 Formula 2d
wherein in Formula 2d, 5.5≤x≤6.5, 0.01≤00.05, and 4.8≤z≤5.2,
Lix(Co1−yYy)z(P2O7)4 Formula 2e
wherein in Formula 2e, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yLay)z(P2O7)4 Formula 2f
wherein in Formula 2f, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yZry)z(P2O7)4 Formula 2g
wherein in Formula 2g, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yHfy)z(P2O7)4 Formula 2h
wherein in Formula 2h, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yTCy)z(P2O7)4 Formula 2i
wherein in Formula 2i, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yRey)z(P2O7)4 Formula 2j
wherein in Formula 2j, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yRuy)z(P2O7)4 Formula 2k
wherein in Formula 2k, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yOs)z(P2O7)4 Formula 2l
wherein in Formula 2l, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yRhy)z(P2O7)4 Formula 2m
wherein in Formula 2m, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yIry)z(P2O7)4 Formula 2n
wherein in Formula 2n, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yPdy)z(P2O7)4 Formula 2o
wherein in Formula 2o, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yPty)z(P2O7)4 Formula 2p
wherein in Formula 2p, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2,
Lix(Co1−yAgy)z(P2O7)4 Formula 2q
wherein in Formula 2q, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2, or
Lix(Co1−yAuy)z(P2O7)4 Formula 2r
wherein in Formula 2r, 5.5≤x≤6.5, 0.01≤y≤0.05, and 4.8≤z≤5.2.

34 more elements

Facts

Application

17/482,684Filed 23 Sep 2021

Priority

KR 10-2021-005135020 Apr 2021

Published

US 2022/0336803 A120 Oct 2022

Granted

11 Jun 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01M 4/525
Of nickel, cobalt or iron: of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g.…
H01M 4/0471
Processes of manufacture in general: involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal…
H01M 4/366
Composites: as layered products
H01M 10/0562
The electrolyte being constituted of inorganic materials only: solid materials