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1. 发明授权

US11437673B2 Battery and device using the same 有权
公开(公告)号：US11437673B2
公开(公告)日：2022-09-06
申请号：US16524404
申请日：2019-07-29
申请人： Ningde Amperex Technology Ltd.
发明人： Jiao Tian
IPC分类号： H01M50/116 , H01M50/172 , H01M50/531
摘要： An impact-proofed battery includes a packaging film, an electrode assembly received in the packaging film, tabs extending from an end portion of the electrode assembly, and insulating layers. Each tab includes a connecting region, a packaging region, and an exposed region connected in the order written. The connecting region is electrically connected to the electrode assembly, and the exposed region is exposed from the packaging film. Each insulating layer includes a packaging portion and a protective portion connecting to the packaging portion. The packaging portion covers the packaging region and is between the packaging film and the packaging region. The protective portion is between the connecting region and the packaging film, and an area of the protective portion is greater than an area of the connecting region. The disclosure also provides a device using the battery.

2. 发明申请

US20230052928A1 NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS 有权
公开(公告)号：US20230052928A1
公开(公告)日：2023-02-16
申请号：US17956373
申请日：2022-09-29
申请人： NINGDE AMPEREX TECHNOLOGY LTD.
发明人： Congrong CHEN , Zhihuan CHEN , Hang CUI , Yuansen XIE
IPC分类号： H01M4/38 , H01M10/0525 , H01M4/587 , H01M4/36 , H01M4/62 , H01M4/48 , H01M4/58
摘要： A negative electrode material includes a silicon-based material, where a particle of the silicon-based material includes at least one recessed portion, and the recessed portion is 50 nm to 20 μm in width, and 50 nm to 10 μm in depth. The recessed structure leaves room for the silicon-based material to swell, thereby solving the problem of large volume swelling of the silicon-based material. In addition, when the silicon-based material with the recessed structure is composited with a carbon material, a conductive agent, and the like to form a negative electrode plate, small particles of the carbon material and the conductive agent are embedded into the recessed portion of the silicon-based material, solving the problem of low compacted density of the silicon-based negative electrode material with a recessed structure, and compensating for the low volumetric energy density of the recessed structure.

3. 发明申请

US20230040107A1 ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE 有权
公开(公告)号：US20230040107A1
公开(公告)日：2023-02-09
申请号：US17956272
申请日：2022-09-29
申请人： NINGDE AMPEREX TECHNOLOGY LTD.
发明人： Bangkun Zou
IPC分类号： H01M4/13 , H01M4/36 , H01M10/0525 , H01M50/531
摘要： An electrochemical device includes a negative electrode plate including a negative current collector provided with a negative active material layer and a positive electrode plate including a positive current collector provided with a positive active material layer. The positive active material layer includes a first region. The first region includes a second region and a third region that does not overlap the second region by any area. A first insulation layer is disposed on a surface of the second region. The negative active material layer includes a fourth region facing towards the third region. An area S2 mm2 of the second region and an area S1 mm2 of the first region satisfy: S2

4. 发明授权

US11508993B2 Electrode assembly having an electrode subassembly, and battery including the electrode assembly 有权
公开(公告)号：US11508993B2
公开(公告)日：2022-11-22
申请号：US16695590
申请日：2019-11-26
申请人： Ningde Amperex Technology Ltd.
发明人： Qiaoshu Hu , Yi-Bo Zhang
IPC分类号： H01M10/0587 , H01M10/0525 , H01M4/02
摘要： An electrode assembly includes an electrode subassembly forming by winding a first electrode plate and a second electrode plate. The first electrode plate includes a first electrode plate unit. The first electrode plate unit includes a bipolar current collector, a first active layer, and a second active layer. The bipolar current collector is disposed between the first active layer and the second active layer. The first active layer is electrically connected to the second active layer. The second electrode plate includes a composite current collector, a third active layer, and a fourth active layer. The composite current collector is disposed between the third active layer and the fourth active layer. The third active layer is electrically insulated from the fourth active layer. The disclosure further provides a battery including the electrode assembly.

5. 发明申请

US20210408627A1 BATTERY CASING ASSEMBLY AND BATTERY HAVING THE SAME 有权
公开(公告)号：US20210408627A1
公开(公告)日：2021-12-30
申请号：US16637834
申请日：2020-01-09
申请人： Ningde Amperex Technology Ltd.
发明人： WU MA , GuoWen Zhang , PEIPEI GUO , LIQING LIN
IPC分类号： H01M50/181 , H01M50/109 , H01M50/593 , H01M50/588 , H01M50/559 , H01M50/547
摘要： A battery includes a casing assembly which includes a terminal post and a first casing. The first casing includes a first casing portion and a second casing portion connected to the first casing portion. The first casing portion protrudes from the second casing portion to define a receiving space. The terminal post is fixed to the first casing portion and partially received in the receiving space. A battery including the battery casing assembly is further provided.

6. 发明申请

US20210020921A1 BATTERY CELL AND BATTERY USING THE SAME 有权
公开(公告)号：US20210020921A1
公开(公告)日：2021-01-21
申请号：US16549144
申请日：2019-08-23
申请人： Ningde Amperex Technology Ltd.
发明人： YI-BO ZHANG , Qiaoshu Hu , Bin Wang , Li Xiang
IPC分类号： H01M4/36 , H01M10/052 , H01M4/38 , H01M4/04 , H01M4/1395
摘要： A battery cell includes at least one electrode plate. The electrode plate includes a composite current collector having an ionic conductive material and two active material layers disposed on the composite current collector. The active material layers include a positive active material layer and a negative active material layer. The composite current collector is disposed between the positive active material layer and the negative active material layer. Each of the positive active material layer and the negative active material layer is connected to the ionic conductive material. The battery cell is a multilayered structure formed by folding a single electrode plate upon itself or by stacking the electrode plates together, adjacent active material layers in two adjacent layers of the battery cell are of a same polarity. A battery using the battery cell is also provided.

7. 发明申请

US20150244030A1 LITHIUM ION SECONDARY BATTERY AND ELECTROLYTE SOLUTION THEREOF 审中-公开
标题翻译：锂离子二次电池和电解质溶液
公开(公告)号：US20150244030A1
公开(公告)日：2015-08-27
申请号：US14289248
申请日：2014-05-28
申请人： Ningde Amperex Technology Ltd.
发明人： Shite YE , Chenghua FU , Chunbo CHU , Azhong WANG
IPC分类号： H01M10/0569 , H01M10/0525
CPC分类号： H01M10/0569 , H01M10/0525 , H01M2300/0028 , H01M2300/004 , Y02E60/122
摘要： The present disclosure provides a lithium ion secondary battery and electrolyte solution thereof. The electrolyte solution of the lithium ion secondary battery includes a nonaqueous organic solvent, and a lithium salt dissolved in the nonaqueous organic solvent. The nonaqueous organic solvent includes a dicyano ester compound of a structure shown by Formula I, Formula II, or Formula III. Formula I represents dicyano carbonate ester compounds, Formula II represents dicyano sulfite ester compounds, Formula III represents dicyano sulfate ester compounds, and the value n is an integer between 1 and 4. The lithium ion secondary battery according to the present disclosure includes the aforementioned electrolyte solution. At a working voltage of 4.3 V or higher, the lithium ion secondary battery according to the present disclosure can effectively suppress the oxidation of the electrolyte solution and improve the storage performance of the lithium ion secondary battery at high temperature.
摘要翻译：本公开内容提供了锂离子二次电池及其电解质溶液。锂离子二次电池的电解液包含非水有机溶剂和溶解在非水有机溶剂中的锂盐。非水有机溶剂包括式I，式II或式III所示结构的二氰酸酯化合物。式I表示二氰基碳酸酯化合物，式II表示二氰基亚硫酸酯化合物，式III表示二氰基硫酸酯化合物，n值为1至4之间的整数。根据本公开的锂离子二次电池包括上述电解质解。在4.3V以上的工作电压下，根据本发明的锂离子二次电池能够有效地抑制电解液的氧化，提高锂离子二次电池在高温下的储存性能。

8. 发明申请

US20230043821A1 NEGATIVE ELECTRODE PLATE AND ELECTROCHEMICAL APPARATUS INCLUDING THE NEGATIVE ELECTRODE PLATE 有权
公开(公告)号：US20230043821A1
公开(公告)日：2023-02-09
申请号：US17956473
申请日：2022-09-29
申请人： NINGDE AMPEREX TECHNOLOGY LTD.
发明人： Maohua CHEN , Daguang LI , Yuansen XIE
IPC分类号： H01M4/36 , H01M10/0525 , H01M4/62 , H01M4/48 , H01M4/13
摘要： A negative electrode plate includes: a current collector; and a negative electrode framework located on the current collector, where the negative electrode framework includes at least a first negative electrode framework layer and a second negative electrode framework layer, the first negative electrode framework layer is located between the current collector and the second negative electrode framework layer, and a porosity of the first negative electrode framework layer is higher than a porosity of the second negative electrode framework layer. With this design, side reactions between lithium metal and an electrolyte can be reduced, formation of lithium dendrites can be inhibited, and drastic swelling and contraction of the negative electrode plate in volume due to intercalation and deintercalation of lithium ions can be greatly alleviated or even eliminated, thereby improving safety and stability of the electrochemical apparatus.

9. 发明授权

US11450857B2 Current collector with insulating substrate and conductive layer, electrode plate using the same, and electrode assembly using the same 有权
公开(公告)号：US11450857B2
公开(公告)日：2022-09-20
申请号：US16527158
申请日：2019-07-31
申请人： Ningde Amperex Technology Ltd.
发明人： Hongmei Wei , Bin Wang , Li Xiang , Yi-Bo Zhang
IPC分类号： H01M4/66 , H01M4/70 , H01M10/0525 , H01M50/531
摘要： A current collector for a lithium ion battery of reduced sensitivity to shocks and jars includes an insulating substrate, a first conductive layer; and at least one extended conductive layer extending from the first conductive layer. The insulating substrate has a main region and at least one tab region extending therefrom. The main region includes first and second surfaces opposing each other. The tab region includes a first extended surface extending from the first surface, and a second extended surface extending from the second surface. The first conductive layer covers the first surface, and the at least one extended conductive layer covers the first extended surface. Each tab region and extended conductive layer form a tab. The disclosure also provides an electrode plate and an electrode assembly.

10. 发明授权

US11342635B2 Electrode plate and electrode assembly using the same 有权
公开(公告)号：US11342635B2
公开(公告)日：2022-05-24
申请号：US16395535
申请日：2019-04-26
申请人： Ningde Amperex Technology Ltd.
发明人： Li Xiang , YiSong Su , Qiaoshu Hu , Ying Shao
IPC分类号： H01M50/529 , H01M4/66 , H01M50/46 , H01M50/531
摘要： An electrode assembly includes a cathode electrode plate, an anode electrode plate, and a separator disposed between the cathode electrode plate and the anode electrode plate. At least one of the cathode electrode plate and the anode electrode plate is an electrode plate which includes a current collector and a first conductive connector. The current collector includes an insulating layer having opposite side surfaces, a first conductive layer, a second conductive layer, and two electrode active substance layers. The first conductive layer and the second conductive layer are arranged on opposite side surfaces, and the two electrode active substance layers are coated onto the first conductive layer and the second conductive layer. The first conductive connector electrically connects the first conductive layer and the second conductive layer. The electrode assembly is formed by coiling the cathode electrode plate, the separator, and the anode electrode plate.

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