Positive electrode material for secondary battery, method for manufacturing the same, and lithium-ion secondary battery

US11670773B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11670773-B2
Application numberUS-202017129200-A
CountryUS
Kind codeB2
Filing dateDec 21, 2020
Priority dateFeb 1, 2017
Publication dateJun 6, 2023
Grant dateJun 6, 2023

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A positive electrode material for a secondary battery, wherein the positive electrode material includes a triclinic crystal structure.

First claim

Opening claim text (preview).

What is claimed is: 1. A positive electrode material for a secondary battery, wherein the positive electrode material includes a triclinic crystal structure and is represented by Li 4+x (Fe 1−z N 2 ) 4−0.5x (P 2 O 7 ) 3 , where −0.65≤x≤0.75, 0.0<z≤0.7. 2. A positive electrode material for a second battery, wherein the positive electrode material includes a triclinic crystal structure and is represented by Li 4+x (Fe 2 Mn z ) 4−0.5x (P 2 O 7 ) 3 , where −0.65≤x≤0.75, 0.0<z≤0.7.

Assignees

Inventors

Classifications

  • Li-accumulators · CPC title

  • Positive electrodes · CPC title

  • H01M4/5825Primary

    Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines · CPC title

  • Pyrophosphates · CPC title

  • of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title

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Frequently asked questions

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What does patent US11670773B2 cover?
A positive electrode material for a secondary battery, wherein the positive electrode material includes a triclinic crystal structure.
Who is the assignee on this patent?
Fujitsu Ltd
What technology area does this patent fall under?
Primary CPC classification H01M4/5825. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 06 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).