JP2001006676A5 - - Google Patents

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Publication number
JP2001006676A5
JP2001006676A5 JP2000079929A JP2000079929A JP2001006676A5 JP 2001006676 A5 JP2001006676 A5 JP 2001006676A5 JP 2000079929 A JP2000079929 A JP 2000079929A JP 2000079929 A JP2000079929 A JP 2000079929A JP 2001006676 A5 JP2001006676 A5 JP 2001006676A5
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JP
Japan
Prior art keywords
metal
positive electrode
secondary battery
lithium secondary
lithium
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JP2000079929A
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Japanese (ja)
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JP4706090B2 (en
JP2001006676A (en
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Priority to JP2000079929A priority Critical patent/JP4706090B2/en
Priority claimed from JP2000079929A external-priority patent/JP4706090B2/en
Publication of JP2001006676A publication Critical patent/JP2001006676A/en
Publication of JP2001006676A5 publication Critical patent/JP2001006676A5/ja
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【特許請求の範囲】
【請求項１】 リチウムマンガン複合酸化物の粒子表面を、電気伝導性及びリチウム伝導性を有する金属酸化物又は金属硫化物からなる群から選ばれる少なくとも一種で被覆してなるリチウム二次電池用正極材料。
【請求項２】 請求項１において、金属酸化物又は金属硫化物がＴｉ、Ｓｎ、Ｖ、Ｎｂ、Ｍｏ及びＷからなる群から選ばれる少なくとも一種の金属を含有するリチウム二次電池用正極材料。
【請求項３】 請求項１において、金属酸化物又は金属硫化物がＴｉ及びＳｎからなる群から選ばれる少なくとも一種の金属を含有するリチウム二次電池用正極材料。
【請求項４】 請求項１乃至３のいずれかにおいて、リチウムマンガン複合酸化物の粒子表面に、さらに、金属酸化物及び／又は金属硫化物中の金属元素と異なる価数の金属元素を存在させるリチウム二次電池用正極材料。
【請求項５】 請求項１乃至４のいずれかに記載の正極材料、結着剤及び導電材を含有するリチウム二次電池用正極。
【請求項６】 請求項１乃至４のいずれかに記載の正極材料を用いたリチウム二次電池。
【請求項７】 リチウムマンガン複合酸化物と金属を含有する被覆層原料とを含有したスラリーを噴霧乾燥後、焼成することを特徴とする請求項１乃至４のいずれか１つに記載のリチウム二次電池用正極材料の製造法。 [Claims]
1. A positive electrode for a lithium secondary battery comprising a lithium manganese composite oxide particle surface coated with at least one selected from the group consisting of metal oxides and metal sulfides having electrical conductivity and lithium conductivity. material.
2. The positive electrode material for a lithium secondary battery according to claim 1, wherein the metal oxide or metal sulfide contains at least one metal selected from the group consisting of Ti, Sn, V, Nb, Mo and W.
3. The positive electrode material for a lithium secondary battery according to claim 1, wherein the metal oxide or metal sulfide contains at least one metal selected from the group consisting of Ti and Sn.
4. A metal element having a valence different from that of the metal element in the metal oxide and / or metal sulfide on the particle surface of the lithium manganese composite oxide according to any one of claims 1 to 3. Positive electrode material for lithium secondary batteries.
5. A positive electrode for a lithium secondary battery, comprising the positive electrode material according to claim 1, a binder and a conductive material.
6. A lithium secondary battery using the positive electrode material according to claim 1.
7. The lithium secondary battery according to claim 1, wherein a slurry containing the lithium-manganese composite oxide and a coating material containing a metal is spray-dried and then fired. Manufacturing method of cathode material for secondary battery.

JP2000079929A 1999-04-23 2000-03-22 Positive electrode material and positive electrode for lithium secondary battery, and lithium secondary battery Expired - Lifetime JP4706090B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000079929A JP4706090B2 (en) 1999-04-23 2000-03-22 Positive electrode material and positive electrode for lithium secondary battery, and lithium secondary battery

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP11-116728 1999-04-23
JP1999116728 1999-04-23
JP11672899 1999-04-23
JP2000079929A JP4706090B2 (en) 1999-04-23 2000-03-22 Positive electrode material and positive electrode for lithium secondary battery, and lithium secondary battery

Publications (3)

Publication Number Publication Date
JP2001006676A JP2001006676A (en) 2001-01-12
JP2001006676A5 true JP2001006676A5 (en) 2007-05-10
JP4706090B2 JP4706090B2 (en) 2011-06-22

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JP2000079929A Expired - Lifetime JP4706090B2 (en) 1999-04-23 2000-03-22 Positive electrode material and positive electrode for lithium secondary battery, and lithium secondary battery

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WO2008013208A1 (en) * 2006-07-26 2008-01-31 Agc Seimi Chemical Co., Ltd. Positive electrode active material for nonaqueous electrolyte secondary battery and method for producing the same
JP5194633B2 (en) * 2006-08-17 2013-05-08 Ｔｄｋ株式会社 Active material and electrode manufacturing method, active material and electrode
US8715854B2 (en) 2006-08-17 2014-05-06 Tdk Corporation Active material with a surface-modified layer covering a metal oxide core and an electrode and battery comprising the same
JP5470751B2 (en) * 2008-02-13 2014-04-16 Ｔｄｋ株式会社 Active material and electrode manufacturing method, active material and electrode
US20130059209A1 (en) * 2010-05-17 2013-03-07 Sumitomo Electric Industries, Ltd. Positive-electrode body for nonaqueous-electrolyte battery, method for producing the positive-electrode body, and nonaqueous-electrolyte battery
JP2010225593A (en) * 2010-06-02 2010-10-07 Sony Corp Positive electrode material and secondary battery
JP5880996B2 (en) * 2011-05-13 2016-03-09 株式会社豊田自動織機 Lithium manganese silicate composite, positive electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery
KR101794097B1 (en) 2013-07-03 2017-11-06 삼성에스디아이 주식회사 Positive active material for rechargeable lithium battery, method of preparing the same, and positive electrode for rechargeable lithium battery and rechargeable lithium battery including the same
WO2017082268A1 (en) * 2015-11-13 2017-05-18 日立金属株式会社 Positive-electrode material for lithium-ion secondary battery, method for producing same, and lithium-ion secondary battery
JP7131056B2 (en) * 2017-04-28 2022-09-06 住友金属鉱山株式会社 Positive electrode active material for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery
KR102164252B1 (en) 2017-05-04 2020-10-12 주식회사 엘지화학 Negative electrode active material, negative electrode comprising the negative electrode active material, lithium secondarty battery comprising the negative electrode and method for preparing the negative electrode active material
KR102138691B1 (en) * 2017-08-24 2020-07-28 한양대학교 산학협력단 Positive active material, method of fabricating of the same, and lithium secondary battery comprising the same
WO2024000405A1 (en) * 2022-06-30 2024-01-04 宁德新能源科技有限公司 Positive electrode material, electrochemical apparatus and electrical apparatus

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