Positive electrode active material for lithium secondary battery, method for preparing same, and lithium secondary battery comprising same
The present invention relates to a positive electrode active material, a method for preparing the same, and a lithium secondary battery comprising the same, the positive electrode active material comprising at least one secondary particle comprising an aggregate of primary large particles. According...
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| creator | JO CHI-HO YOO TAE GU ZHENG GAITING KIM JI-HYE JUNG WANG-MO HUH JONG-WOOK |
| description | The present invention relates to a positive electrode active material, a method for preparing the same, and a lithium secondary battery comprising the same, the positive electrode active material comprising at least one secondary particle comprising an aggregate of primary large particles. According to an embodiment of the present invention, there may be provided a positive electrode active material comprising secondary particles having improved electrical resistance by simultaneously increasing an average particle diameter D50 and a crystal size of primary large particles. According to an embodiment of the present invention, a positive electrode active material having a high crystal density can be provided. Accordingly, a nickel-based positive electrode active material having improved lifespan and resistance characteristics can be obtained by securing a movement path of lithium ions and minimizing defects in a crystal structure of the positive electrode active material.
本发明涉及正极活性材料、其制备方法和包含其的锂二次电池，所述正极活性材料包含 |
| format | Patent |
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本发明涉及正极活性材料、其制备方法和包含其的锂二次电池，所述正极活性材料包含</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRICITY</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNy70KwkAQBOA0FqK-w9pHMPgDV0pQrMTCPqx3G7Nwf-ydQl7Bp1aCloLVwMw34-J5DokzPwjIks4SDAHqoXCYSRgttEHAcu747iCRDt6g9HDF_N77EhzlLphBRaGIwv4GCR2VgN78foIOLgqnL58WoxZtotknJ8X8sL_UxwXF0FCKqMlTbupTVW3XaqnUZrf6x7wAAZBN5Q</recordid><startdate>20230725</startdate><enddate>20230725</enddate><creator>JO CHI-HO</creator><creator>YOO TAE GU</creator><creator>ZHENG GAITING</creator><creator>KIM JI-HYE</creator><creator>JUNG WANG-MO</creator><creator>HUH JONG-WOOK</creator><scope>EVB</scope></search><sort><creationdate>20230725</creationdate><title>Positive electrode active material for lithium secondary battery, method for preparing same, and lithium secondary battery comprising same</title><author>JO CHI-HO ; YOO TAE GU ; ZHENG GAITING ; KIM JI-HYE ; JUNG WANG-MO ; HUH JONG-WOOK</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN116490995A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRICITY</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>JO CHI-HO</creatorcontrib><creatorcontrib>YOO TAE GU</creatorcontrib><creatorcontrib>ZHENG GAITING</creatorcontrib><creatorcontrib>KIM JI-HYE</creatorcontrib><creatorcontrib>JUNG WANG-MO</creatorcontrib><creatorcontrib>HUH JONG-WOOK</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JO CHI-HO</au><au>YOO TAE GU</au><au>ZHENG GAITING</au><au>KIM JI-HYE</au><au>JUNG WANG-MO</au><au>HUH JONG-WOOK</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Positive electrode active material for lithium secondary battery, method for preparing same, and lithium secondary battery comprising same</title><date>2023-07-25</date><risdate>2023</risdate><abstract>The present invention relates to a positive electrode active material, a method for preparing the same, and a lithium secondary battery comprising the same, the positive electrode active material comprising at least one secondary particle comprising an aggregate of primary large particles. According to an embodiment of the present invention, there may be provided a positive electrode active material comprising secondary particles having improved electrical resistance by simultaneously increasing an average particle diameter D50 and a crystal size of primary large particles. According to an embodiment of the present invention, a positive electrode active material having a high crystal density can be provided. Accordingly, a nickel-based positive electrode active material having improved lifespan and resistance characteristics can be obtained by securing a movement path of lithium ions and minimizing defects in a crystal structure of the positive electrode active material.
本发明涉及正极活性材料、其制备方法和包含其的锂二次电池，所述正极活性材料包含</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
| title | Positive electrode active material for lithium secondary battery, method for preparing same, and lithium secondary battery comprising same |
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