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1. 发明申请

US20230135365A1 LDH SEPARATOR 有权
公开(公告)号：US20230135365A1
公开(公告)日：2023-05-04
申请号：US18146580
申请日：2022-12-27
申请人： NGK INSULATORS, LTD.
发明人： Shumpei ONO , Sho YAMAMOTO , Naoko INUKAI , Shohei YOKOYAMA
IPC分类号： H01M50/446 , H01M50/491 , H01M10/054 , H01M8/0243 , H01M8/083
摘要： There is provided an LDH separator including a porous substrate and a hydroxide ion-conductive layered compound that is a layered double hydroxide (LDH) and/or a layered double hydroxide (LDH)-like compound, filling up pores of the porous substrate. The proportion of the hydroxide ion-conductive layered compound in the LDH separator is 25 to 85% by weight.

2. 发明申请

US20230134434A1 SEPARATOR, PREPARATION METHOD AND BATTERY 有权
公开(公告)号：US20230134434A1
公开(公告)日：2023-05-04
申请号：US18147220
申请日：2022-12-28
申请人： ZHUHAI COSMX BATTERY CO., LTD.
发明人： Yuede PAN , Suli LI , Junyi LI , Yanming XU
IPC分类号： H01M50/446 , H01M50/491
摘要： Disclosed are a separator and a battery. The separator includes a porous substrate, functional particles, and a coating layer. The functional particles are filled up in internal pores of the porous substrate, and the coating layer is arranged on the upper and lower surface of the porous substrate; the functional particles are oxides of which the outer layers comprise —NH or —NH2 groups. As the functional particles are contained in the separator, the —NH— or —NH2 groups can effectively adsorb an acidic substance in a lithium ion battery; the acid content in the lithium ion battery is reduced, and hydrophilic groups on the outer layers of the functional particles can improve the wettability of an electrolyte, increase lithium ion channels, and improve a liquid retention rate of the separator. Therefore, the separator provided in the present disclosure can improve cycling performance and safety performance.

3. 发明申请

US20230131454A1 METHOD FOR MANUFACTURING LITHIUM ION BATTERIES 有权
公开(公告)号：US20230131454A1
公开(公告)日：2023-04-27
申请号：US17907444
申请日：2021-03-30
申请人： HFG
发明人： Fabien GABEN
IPC分类号： H01M10/0525 , H01M10/058 , H01M50/403 , H01M4/04 , H01M50/491
摘要： A method for manufacturing a lithium ion battery with a capacitance greater than 1 mA h, including the deposition of at least one dense layer, which can be an anode and/or a cathode and/or an electrolyte, by a method of depositing a dense layer. The method includes: supplying a substrate and a suspension of non-agglomerated nanoparticles of a material P; depositing a layer on the substrate using the suspension; drying the layer thus obtained; densifying the dried layer by mechanical compression and/or heat treatment. The method of depositing being characterised in that the suspension of non-agglomerated nanoparticles of material P includes nanoparticles of material P having a size distribution, said size being characterised by the value of D50 thereof, such that: the distribution includes nanoparticles of material P of a first size D1 between 20 nm and 50 nm, and nanoparticles of material P of a second size D2 characterised by a value D50 at least five times less than that of D1, or the distribution has a mean size of nanoparticles of material P less than 50 nm, and a standard deviation to mean size ratio greater than 0.6.

4. 发明申请

US20230116372A1 HIGH-ADHESION SEPARATOR FOR BATTERIES INCLUDING PVAC-PMA COPOLYMER AND SECONDARY BATTERY INCLUDING THE SAME 有权
公开(公告)号：US20230116372A1
公开(公告)日：2023-04-13
申请号：US17912968
申请日：2021-08-06
申请人： LG ENERGY SOLUTION, LTD.
发明人： Min Ji KIM , So Mi JEONG , Da Kyung HAN
IPC分类号： H01M50/446 , H01M50/457 , H01M50/491
摘要： A high-adhesion separator for batteries, the high-adhesion separator including a porous substrate and a coating layer formed on at least one surface of the porous substrate, the coating layer including an inorganic material, wherein the coating layer includes a copolymer of a humidification phase separable polymer and vinyl acetate, and a secondary battery including the same.

5. 发明授权

US11626589B2 Secondary battery and device containing same 有权
公开(公告)号：US11626589B2
公开(公告)日：2023-04-11
申请号：US17565438
申请日：2021-12-29
申请人： Contemporary Amperex Technology Co., Limited
发明人： Guangjun Wang
IPC分类号： H01M4/525 , H01M50/489 , H01M50/491 , H01M50/449 , H01M4/36 , H01M4/48 , H01M4/505 , H01M4/583 , H01M4/587 , H01M4/02
摘要： This application discloses a secondary battery and a device containing the secondary battery. A positive active material of the secondary battery includes one or more of lithium nickel cobalt manganese oxide, lithium nickel cobalt aluminum oxide, and a modified material thereof. A negative active material of the secondary battery includes a silicon-oxygen compound and graphite. A separator of the secondary battery includes a substrate and a coating layer. The secondary battery satisfies: 7.5 ≤ 3460 ED - ( D ⁢ 50 - D C ⁢ 50 × 0.75 - T 18 ) ≤ 11.5 , where ED≥270 Wh/Kg, 11 μm≤D50≤18.5 μm, 11 μm≤DC50≤20 μm. The secondary battery according to this application achieves relatively high cycle performance while achieving a relatively high energy density concurrently.

6. 发明申请

US20230090568A1 SEPARATOR FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME 有权
公开(公告)号：US20230090568A1
公开(公告)日：2023-03-23
申请号：US17801824
申请日：2021-03-31
申请人： LG ENERGY SOLUTION, LTD.
发明人： So-Mi JEONG , Min-Ji KIM , Da-Kyung HAN
IPC分类号： H01M50/48 , H01M50/46 , H01M50/491
摘要： A separator for a lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery including the separator, where the separator includes a porous polymer substrate having a plurality of pores, and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes a plurality of inorganic particles and a binder polymer. The binder polymer includes a thermosetting phenolic resin having at least one hydroxyl group and at least one aromatic group. When the separator is exposed to high temperature, due to ignition or the like, the thermosetting phenolic resin in the porous coating layer is thermally cured to form a network structure by virtue of the structural characteristics of the separator. As a result, the separator has improved heat resistance as compared to the conventional separators and shows high adhesion to an electrode.

7. 发明申请

US20230086309A1 SEPARATOR FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME 有权
公开(公告)号：US20230086309A1
公开(公告)日：2023-03-23
申请号：US17801423
申请日：2021-02-26
申请人： LG ENERGY SOLUTION, LTD.
发明人： Kyung-Ryun KA , Jin-Young SHIN , Sang-Joon LEE , Je-An LEE
IPC分类号： H01M50/449 , H01M10/0525 , H01M50/434 , H01M50/403 , H01M50/491 , H01M50/446 , H01M50/414 , H01M50/42 , H01M50/426
摘要： A separator for a lithium secondary battery. The separator for a lithium secondary battery is provided with a porous coating layer including small-particle diameter inorganic particles, large-particle diameter inorganic particles and adhesive polymer particles. The porous coating layer has a predetermined level of porosity. The separator has reinforced heat resistance, reduced resistance and improved peel strength to a porous polymer substrate.

8. 发明申请

US20230038029A1 ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE CONTAINING SAME 有权
公开(公告)号：US20230038029A1
公开(公告)日：2023-02-09
申请号：US17953680
申请日：2022-09-27
申请人： Amperex Technology Limited
发明人： Nan ZHANG , Bin WANG , Yibo ZHANG , Chi Ho KWOK , Wai Chung LI , Chenmin LIU
IPC分类号： H01M50/446 , H01M10/0525 , H01M50/491
摘要： An electrochemical device includes an electrode plate and a separation layer on at least one surface of the electrode plate. The separation layer includes a nanofibrous porous substrate including nanofibers and polymer particles distributed in the nanofibrous porous substrate including nanofibers. A melting temperature of the polymer particles is 70° C. to 150° C.

9. 发明申请

US20230022950A1 ENERGY STORAGE DEVICE 有权
公开(公告)号：US20230022950A1
公开(公告)日：2023-01-26
申请号：US17787448
申请日：2020-12-22
申请人： GS YUASA INTERNATIONAL LTD.
发明人： Kenta OGI , Kei KUMABAYASHI , Akihiko MIYAZAKI
IPC分类号： H01M4/133 , H01M4/587 , H01M4/505 , H01M4/525 , H01M4/131 , H01M4/62 , H01M50/491 , H01M10/0587 , H01G11/32 , H01G11/46
摘要： An energy storage device according to one aspect of the present invention includes: a negative electrode including a negative electrode substrate and a negative active material layer layered directly or indirectly on a surface of the negative electrode substrate; and a positive electrode. The negative active material layer contains a negative active material. The negative active material contains non-graphitizable carbon. In one direction of the negative electrode substrate, at least one end edge side of the negative active material layer is thicker than a central portion present between the one end edge side and the other end edge side facing the one end edge side. When a true density of the non-graphitizable carbon is A [g/cm3], an amount of charge B [mAh/g] of the negative electrode in a fully charged state satisfies the following formula 1. −
173
XA+1588
≤
B
≤
-830A+1800

10. 发明申请

US20220393311A1 BATTERY MODULE, BATTERY PACK, ELECTRIC APPARATUS, AND METHOD AND DEVICE FOR MANUFACTURING BATTERY MODULE 有权
公开(公告)号：US20220393311A1
公开(公告)日：2022-12-08
申请号：US17890302
申请日：2022-08-18
申请人： Contemporary Amperex Technology Co., Limited
发明人： Qian LIU , Yonghuang Ye , Chengdu Liang , Haizu Jin
IPC分类号： H01M50/51 , H01M50/446 , H01M4/525 , H01M4/505 , H01M4/58 , H01M50/491 , H01M10/0585 , H01M10/0525
摘要： The present application relates to a battery module, comprising a first type of battery cells and a second type of battery cells electrically connected at least in series, wherein the first type of battery cells and the second type of battery cells are battery cells with different chemical systems, the first type of battery cells comprises N first battery cells, the second type of battery cells comprises M second battery cells, N and M are positive integers, the first battery cell comprises a first separator and a first electrolyte, the second battery cell comprises a second separator and a second electrolyte, a kinetic characteristic factor x1 of the first battery cell is: x1=1000×(ε1×r1)/(τ1×t1×θ1), a kinetic characteristic factor x2 of the second battery cell is: x2=1000×(ε2×r2)/(τ2×t2×θ2), and x1 and x2 satisfy: 0.01≤x1/x2≤160.

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