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公开(公告)号：EP4439717A1
公开(公告)日：2024-10-02
申请号：EP23863415.8
申请日：2023-09-01
发明人： CHOI, Junghyun , PARK, Semi , PARK, Heeyeon , SHIN, Sun Young , OH, Ilgeun , LEE, Yong Ju
IPC分类号： H01M4/36 , H01M4/48 , H01M4/62 , H01M10/052 , H01M4/02
CPC分类号： H01M4/02 , H01M10/052 , H01M4/48 , H01M4/36 , H01M4/62
摘要： The present invention relates to negative active material, a negative electrode comprising same, a secondary battery comprising the negative electrode, and a method for producing the negative active material. The negative active material comprises both a surface layer comprising Li, Al, and P, and oxides comprising one or more from the group consisting of Zr, B, Al, Zn, W, and Ti in the interfacial surface between the silicon-based particles and carbon layer, thereby lowering the reactivity of silicate that is highly reactive with water or bases and easily blocking contact with the outside. Therefore, the phase stability of the negative electrode slurry is improved, and charging and discharging efficiency of the negative electrode produced therewith is improved.
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公开(公告)号：EP4437598A2
公开(公告)日：2024-10-02
申请号：EP22800245.7
申请日：2022-10-07
发明人： SRIMUK, Pattarachai , VÄLI, Roland
IPC分类号： H01M4/04 , H01M4/131 , H01M4/1391 , H01M4/36 , H01M4/48 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/052 , H01M10/054 , H01M4/02
CPC分类号： H01M4/0409 , H01M4/131 , H01M4/1391 , H01M4/366 , H01M4/48 , H01M4/505 , H01M4/525 , H01M4/621 , H01M4/625 , H01M10/052 , H01M10/054 , H01M2004/02120130101 , H01M2004/02720130101 , Y02E60/10
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公开(公告)号：EP4435890A1
公开(公告)日：2024-09-25
申请号：EP22911519.1
申请日：2022-09-21
发明人： YOON, Ji Hee , KIM, Woo Ha , YOON, Sung Soo
IPC分类号： H01M4/36 , H01M4/48 , H01M10/052 , H01M4/02
CPC分类号： Y02E60/10 , H01M4/02 , H01M10/052 , H01M4/48 , H01M4/36
摘要： The present invention relates to a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a negative electrode active material and a binder, wherein the binder includes a) an acryl-based polymer which is a polymer of a monomer mixture containing a (meth)acrylamide group-containing monomer, an unsaturated carboxylic acid-based monomer, and a monomer having a solubility in water of 100 g/L or less; and b) cellulose nanofibers, and a secondary battery.
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4.发明公开
公开(公告)号：EP4432396A1
公开(公告)日：2024-09-18
申请号：EP23753221.3
申请日：2023-02-10
发明人： HUR, Hyuck , PARK, Sin Young , HAN, Gi Beom , KIM, Dong Hwi , KWAK, Min , CHAE, Seul Ki , PARK, Kang Joon , JUNG, Wang Mo
摘要： The present invention relates to positive electrode active material powder including overlithiated manganese-based oxide particles, which are represented by [Formula 1] and are in the form of a single particle composed of one nodule or a pseudo-single particle that is a composite of 2 to 30 nodules, and having an average particle diameter D50 of 2.5 µm or less, and a positive electrode and a lithium secondary battery which include the positive electrode active material powder.
[Formula 1] LiaNibCocMndMeO2
In Formula 1, 1-
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公开(公告)号：EP4411923A1
公开(公告)日：2024-08-07
申请号：EP22875637.5
申请日：2022-08-18
发明人： ISHIGURO Tasuku , TAKEDA Nanami , SATO Yosuke
摘要： Disclosed is a non-aqueous electrolyte secondary battery including: a negative electrode that contains a negative electrode material mixture; a separator; a positive electrode that is provided to oppose the negative electrode via the separator; and a non-aqueous electrolyte. The negative electrode material mixture contains a negative electrode active material. The negative electrode active material contains 3 mass% or more of a silicon-containing material. The silicon-containing material contains carbon composite particles. The carbon composite particles have a carbon phase and a silicon phase dispersed in the carbon phase. The non-aqueous electrolyte contains a 5- or 6-membered cyclic compound component that contains a sulfur element as a ring-constituting element.
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公开(公告)号：EP4398329A1
公开(公告)日：2024-07-10
申请号：EP23204353.9
申请日：2023-10-18
申请人： VOLKSWAGEN AG
CPC分类号： H01M4/48 , H01M4/38 , H01M4/62 , H01M4/66 , H01M4/661 , H01M4/667 , H01M4/134 , H01M4/13 , H01M4/621 , H01M4/622 , H01M4/623 , H01M4/386 , H01M4/483
摘要： Die Erfindung betrifft eine Batterieelektrode (2, 2') für eine elektrochemische Batteriezelle, aufweisend einen metallischen Stromableiter (4) und eine darauf aufgebrachte Primerschicht (6), wobei die Primerschicht (6) ein Leitadditiv (8) und ein elektrochemisch aktives, siliziumbasiertes, Nano-Aktivmaterial (10) aufweist.
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8.发明公开
公开(公告)号：EP4397621A1
公开(公告)日：2024-07-10
申请号：EP22864429.0
申请日：2022-08-26
发明人： OHASHI, Ken , TANAKA, Shuji , FUKUOKA, Hirofumi
IPC分类号： C01B33/113 , H01M4/36 , H01M4/48
CPC分类号： Y02E60/10 , H01M4/48 , H01M4/36 , C01B33/113
摘要： The present invention provides a silicon monoxide powder including silicon monoxide, in which in an X-ray diffraction spectrum of the silicon monoxide powder measured by X-ray diffraction by using a Cu-Kα ray, broad peaks due to an amorphous phase are near 2Θ = 22° and near 2Θ = 50°, and a peak due to a crystal phase of silicon is not near 2Θ = 28°. Thus, the silicon monoxide powder in an amorphous state with a low disproportional rate is provided.
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公开(公告)号：EP4394983A1
公开(公告)日：2024-07-03
申请号：EP22861142.2
申请日：2022-08-09
发明人： KANESATO Shuhei , HIROSE Takakazu , OSAWA Yusuke , KIYOMORI Ayumu , AOKI Shotaro
IPC分类号： H01M10/0567 , H01M4/36 , H01M4/48 , H01M4/58
CPC分类号： Y02E60/10 , H01M10/0567 , H01M4/48 , H01M4/58 , H01M4/36
摘要： The present invention is a non-aqueous electrolyte used for a non-aqueous electrolyte secondary battery, including a silane compound represented by the following general formula (1). By this configuration, a highly safe non-aqueous electrolyte and a non-aqueous electrolyte secondary battery even after charge and discharge are provided:
Si(R1)l(R2)m(R3)4-l-m (1)
wherein R1 represents a heteroaryl group having 4 to 20 carbon atoms; R2 represents an alkenyl group or an alkynyl group having 2 to 20 carbon atoms; R3 represents an alkyl group having 1 to 20 carbon atoms; and "l" and "m" each independently represents an integer of 1 to 3, provided that 2 ≤ l+m ≤ 4 is satisfied.-
公开(公告)号：EP4394938A1
公开(公告)日：2024-07-03
申请号：EP22943008.7
申请日：2022-05-23
发明人： YUAN, Tianci , JIANG, Yao , ZHANG, Xinxin , OUYANG, Chuying , CHEN, Shangdong , WU, Lingjing , KANG, Weibin
摘要： Embodiments of this application provide a positive electrode active material and a preparation method thereof, a positive electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. The positive electrode active material includes a core and a shell layer enveloping the core, the core having a chemical formula LiaAxMn1-yByP1-zCzO4-nDn, where A includes one or more elements selected from Zn, Al, Na, K, Mg, Nb, Mo, and W, B includes one or more elements selected from Ti, V, Zr, Fe, Ni, Mg, Co, Ga, Sn, Sb, Nb, and Ge, C includes one or more elements selected from B, S, Si, and N, and D includes one or more elements selected from S, F, Cl, and Br; and the shell layer is a doped carbon layer, a doping element in the doped carbon layer including any one or more selected from nitrogen, phosphorus, sulfur, boron, and fluorine. The rate performance and cycling performance of a lithium manganese phosphate positive electrode active material are improved.
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