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1.发明公开公开(公告)号：US20240363901A1
公开(公告)日：2024-10-31
申请号：US18291266
申请日：2022-06-27
发明人： Shotaro AOKI , Ayumu KIYOMORI , Takakazu HIROSE , Yusuke OSAWA , Shuhei KANESATO
IPC分类号： H01M10/0567 , C07F7/08 , H01M4/02 , H01M4/36 , H01M4/485 , H01M4/587 , H01M10/0525 , H01M10/42
CPC分类号： H01M10/0567 , C07F7/0805 , H01M4/366 , H01M4/485 , H01M4/587 , H01M10/0525 , H01M10/4235 , H01M2004/027 , H01M2300/0025
摘要： A non-aqueous electrolyte liquid including: a non-aqueous solvent; an electrolyte salt dissolved in the non-aqueous solvent; and a silane compound represented by the following general formula (1),
Si
(
R
1
)
l
(
R
2
)
m
(
R
3
)
n
(
R
4
)
4
-
l
-
m
-
n
(
1
)
wherein R represents an alkenyl group having 2 to 20 carbon atoms, R2 represents a substituted or unsubstituted arylethynyl group having 8 to 20 carbon atoms, R3 represents an alkyl group having 1 to 20 carbon atoms, R4 represents an alkynyl group having 2 to 20 carbon atoms, “l” and “m” each independently represent an integer of 1 to 3, “n” represents an integer of 0 to 2, and “l”, “m”, and “n” represent integers satisfying 2≤l+m+n≤4.-
公开(公告)号：US20240363858A1
公开(公告)日：2024-10-31
申请号：US18767006
申请日：2024-07-09
发明人： Miaomiao DONG , Shaocong OUYANG , Changfeng BIE , Hongyu LIU , Huan NI , Chenghua FU , Xin SUN
CPC分类号： H01M4/5825 , H01M4/364 , H01M4/366 , H01M4/382 , H01M4/60 , H01M10/0525 , H01M2004/027 , H01M2004/028
摘要： The present application provides a secondary battery, a battery module, a battery pack, and an electrical device. The secondary battery includes a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate, in which the positive electrode plate comprises a positive electrode coating containing a positive electrode active material comprising a lithium iron phosphate material and a conjugated carbonyl compound. In a discharge process of the secondary battery, in addition to a discharge plateau of the lithium iron phosphate material, a discharge curve further includes a relatively low discharge plateau provided by the conjugated carbonyl compound.
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3.发明公开公开(公告)号：US20240363857A1
公开(公告)日：2024-10-31
申请号：US18765241
申请日：2024-07-06
发明人： Jianqing ZHAO , Shiyu LI , Lijun GAO
IPC分类号： H01M4/58 , H01M4/04 , H01M4/36 , H01M4/587 , H01M4/62 , H01M10/054 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/058
CPC分类号： H01M4/5825 , H01M4/0404 , H01M4/0471 , H01M4/364 , H01M4/582 , H01M4/587 , H01M4/625 , H01M10/054 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/058 , H01M2300/0037
摘要： The present invention discloses an iron-based cathode material for a sodium-ion battery, which comprises a Na3Fe2(SO4)3F material and a carbon-based material embedded into the bulk structure of Na3Fe2(SO4)3F material. The weight percentage of the carbon-based material is ranked between 1% and 10%. The present invention also provides a method for preparing the above-mentioned iron-based cathode material for a sodium-ion battery, and a corresponding sodium-ion full battery using the Na3Fe2(SO4)3F-based cathode material. The Na3Fe2(SO4)3F cathode material ensures desired electrochemical sodium storage performance, involving high specific sodium storage capacity, improved cycle stability and superior rate performance in comparison with that of various pristine NaxFey(SO4)z materials. The actual operating potential of the reported sodium-ion full battery in the present invention is significantly higher than the output potential of existing commercial sodium-ion full batteries, and the increase in battery energy density is also achieved.
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4.发明公开公开(公告)号：US20240363838A1
公开(公告)日：2024-10-31
申请号：US18636663
申请日：2024-04-16
发明人： Jin HUANG , Ye YU , Lijuan WANG , Chaoyi ZHOU , Qianxin XIANG , Shiyun DENG , Jing WEI , Xianjin WANG
CPC分类号： H01M4/366 , C01G53/50 , H01M4/483 , H01M4/525 , H01M4/5825 , H01M10/0525 , C01P2004/03 , C01P2004/84 , C01P2006/40 , H01M2004/028
摘要： Double-coated high-nickel lithium-ion cathode material, including a cathode material substrate, a first coating layer coated on a surface of the cathode material substrate, and a second coating layer coated on a surface of the first coating layer; wherein the first coating layer and the second coating layer are prepared by successively coating the cathode material substrate with a metal oxide and a boron-containing compound. The high-nickel cathode material for lithium-ion batteries of the present invention has a stable structure and interface, is relatively stable in the air, and is convenient for large-scale production. The prepared battery has low gas production and high safety.
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5.发明公开公开(公告)号：US20240363835A1
公开(公告)日：2024-10-31
申请号：US18504987
申请日：2023-11-08
发明人： Kyunghwa JUNG , Kukjoo LEE , Jungmin LEE , Yunshik CHO , Minho CHO , Hana KIM
CPC分类号： H01M4/364 , H01M4/133 , H01M4/134 , H01M4/386 , H01M4/587 , H01M4/622 , H01M10/052 , H01M2004/027
摘要： A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The negative electrode includes a Si—C composite negative electrode active material and a binder, wherein the binder includes a first binder that is an acrylic copolymer. The acrylic copolymer includes a first acrylic acid monomer, a second acrylonitrile monomer, and a third (meth)acrylate monomer, the first acrylic acid monomer includes acrylic acid substituted with a lithium ion, and the third (meth)acrylate monomer is a (meth)acrylate monomer including an ethylene glycol group and has a weight average molecular weight (Mw) of less than about 900 g/mol.
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公开(公告)号：US20240363827A1
公开(公告)日：2024-10-31
申请号：US18640318
申请日：2024-04-19
IPC分类号： H01M4/04 , H01M4/02 , H01M4/136 , H01M4/1397 , H01M4/36 , H01M50/491
CPC分类号： H01M4/0404 , H01M4/0452 , H01M4/136 , H01M4/1397 , H01M4/366 , H01M2004/027 , H01M2004/028 , H01M50/491
摘要： A method for increasing the cycle life of an electrochemical device comprises the steps of: providing an electrochemical device comprising a positive electrode, a negative electrode, and a separator, the negative electrode being at least partially or entirely coated with a lithiophilic metal, a metalloid, and/or an alloy layer thereof; charging the electrochemical device, the positive electrode generating a polysulfide shuttling through the separator to the negative electrode and oxidizes the inactive lithium into the active lithium. This method protects the negative electrode current collector from generating copper sulfide, inhibiting the generation of lithium sulfide, allowing the sulfur to continuously participate in the charging and discharging and depositing dense lithium metal, thereby increasing the cycle life of the battery and maintaining its electrical properties.
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7.发明授权公开(公告)号：US12132201B2
公开(公告)日：2024-10-29
申请号：US17263339
申请日：2019-07-10
发明人： Takeshi Kondo , Tomokuni Abe , Keigo Oyaizu , Tomoyuki Tasaki , Hiroki Fujisawa
CPC分类号： H01M4/386 , H01M4/366 , H01M4/622 , H01M2004/027
摘要： A negative electrode using a binding agent excellent in binding property, the negative electrode being capable of using water as an alternative solvent to an organic solvent during production of the negative electrode. A negative electrode including: a compound obtained through condensation of polyacrylic acid and a polyaminobenzene derivative represented by general formula (1) below and/or a self-condensation product of the polyaminobenzene derivative; a cellulose derivative; and a negative electrode active material.
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公开(公告)号：US12132200B2
公开(公告)日：2024-10-29
申请号：US17052037
申请日：2019-09-06
发明人： Ju Ri Kim , Seok Koo Kim , Sun Kyu Kim , Young Sik Kim , Jooyong Song , Hyun Woo Kim , Young Jun Lim
CPC分类号： H01M4/382 , H01M4/0404 , H01M4/364 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/028
摘要： The present disclosure provides a positive electrode for a secondary battery which includes a positive electrode active material and a lithium-based alloy. Also, the present disclosure provides a method of preparing the positive electrode for a secondary battery which includes the steps of forming a positive electrode material mixture layer including a positive electrode active material and forming a coating layer including a lithium-based alloy on the positive electrode material mixture layer, or forming a positive electrode material mixture layer by coating a positive electrode collector with a slurry for forming a positive electrode, which includes a positive electrode active material and a lithium-based alloy, and rolling the positive electrode collector.
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公开(公告)号：US12132198B2
公开(公告)日：2024-10-29
申请号：US17994177
申请日：2022-11-25
发明人： Sang Bok Kim , Sang Hye Shin , Sang Min Park , Tae Kyoung Lee , Myoung Lae Kim , Jeong Bae Yoon , Jik Soo Kim , Ji Hoon Choi
CPC分类号： H01M4/364 , H01M4/505 , H01M4/525 , H01M4/60 , H01M10/0525 , H01M2004/028
摘要： The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
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公开(公告)号：US12132197B2
公开(公告)日：2024-10-29
申请号：US17968887
申请日：2022-10-19
发明人： Baoyun Xu , Shaocong Ouyang , Chenghua Fu
CPC分类号： H01M4/364 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/4264 , H01M50/204 , H01M2004/028 , H01M2220/20
摘要： A battery pack may include a battery pack case and battery cells accommodated in the battery pack case; the inner space of the battery pack case may include a first area, a second area, a third area, and a fourth area; a first battery cell may be provided in the first area, a second battery cell may be provided in the second area, a third battery cell may be provided in the third area, and a fourth battery cell may be provided in the fourth area; and the first battery cell, the second battery cell, the third battery cell, and the fourth battery cell each have a first discharge voltage plateau and a second discharge voltage plateau, and an average discharge voltage in the first discharge voltage plateau may be higher than an average discharge voltage in the second discharge voltage plateau.
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