-
公开(公告)号：US11437673B2
公开(公告)日：2022-09-06
申请号：US16524404
申请日：2019-07-29
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.
-
公开(公告)号：US11764362B2
公开(公告)日：2023-09-19
申请号：US16427572
申请日：2019-05-31
发明人： Ying Shao , Li Xiang , Bin Wang , Qiaoshu Hu
IPC分类号： H01M4/66 , H01M10/0587 , H01M50/533 , H01M50/536 , H01M10/04 , H01M10/0525 , H01M50/534 , H01M4/02 , H01M50/538 , H01M10/052
CPC分类号： H01M4/667 , H01M4/661 , H01M4/668 , H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M50/533 , H01M50/534 , H01M50/536 , H01M10/052 , H01M50/538 , H01M2004/021 , Y02E60/10
摘要： An electrode plate for a lithium battery includes a composite current collector, a first active material layer, and a first electrode tab. The composite current collector includes a polymer layer and first metallic layer thereon. The first active material layer is disposed on a surface of the first metallic layer facing away from the polymer layer. The first active material layer defines a first receiving groove at an edge of the first active material layer. The first electrode tab is received in the first receiving groove, and is electrically connected to the first metallic layer. The thickness of the first electrode tab can be varied according to the electrical resistance desired. Thus, a high resistance of the first electrode tab is avoided.
-
公开(公告)号：US11750013B2
公开(公告)日：2023-09-05
申请号：US17008830
申请日：2020-09-01
IPC分类号： H02J7/00
CPC分类号： H02J7/00714 , H02J7/0048 , H02J7/007182 , H02J7/007192
摘要： A method for charging a battery, and electronic device using the method, includes charging the battery with a first charge current Im at constant current in a mth charge-discharge cycle of the battery, wherein the battery has a first cut-off voltage V1 when the constant current charging stage of the battery is cut off in the mth charge-discharge cycle. The first charge current Im is calculated according to a formula Im=In+k×In, where, 0
-
公开(公告)号：US11742554B2
公开(公告)日：2023-08-29
申请号：US16628012
申请日：2019-11-27
发明人： ChunJun Tang , GuoWen Zhang , GuiCheng Li
IPC分类号： H01M50/547 , H01M50/107 , H01M50/179
CPC分类号： H01M50/547 , H01M50/107 , H01M50/179
摘要： A battery includes a battery cell and a terminal post. The first casing includes a first arc sidewall and a flat sidewall connected to the first arc sidewall and the first sidewall. The terminal post is disposed on the flat sidewall. Instead of disposing the terminal post on top of the battery, increased thickness of the battery due to the terminal post is avoided in the present disclosure. The internal space of an electrode device can be fully utilized. In addition, it can prevent the terminal post from occupying the top of the battery and decreasing the number of the electrode plates. Thus, the present disclosure can avoid the reduce of the number of the electrode plates and increase the energy density of the battery.
-
公开(公告)号：US20230261322A1
公开(公告)日：2023-08-17
申请号：US18303877
申请日：2023-04-20
发明人： Xiaohe FAN
IPC分类号： H01M50/446 , H01M50/417 , H01M50/457 , H01M50/449 , H01M50/42 , H01M50/431 , H01G11/22 , H01G11/52 , H01M10/0525
CPC分类号： H01M50/446 , H01M50/417 , H01M50/457 , H01M50/449 , H01M50/42 , H01M50/431 , H01G11/22 , H01G11/52 , H01M10/0525
摘要： A separator includes a porous substrate and a first coating located on at least one surface of the porous substrate. The first coating includes a first polymer binder and first inorganic particles, and the first polymer binder comprising core-shell structured particles. 0.3×Dv50 of the first polymer binder≤Dv50 of the first inorganic particles≤0.7×Dv50 of the first polymer binder. Dv50 represents a particle size which reaches 50% of a cumulative volume from a side of small particle size in a granularity distribution on a volume basis The first inorganic particles are used in the first coating, ensuring that the first polymer binder has a bonding function, electrolyte transport is promoted, and the rate performance of the electrochemical device is improved.
-
公开(公告)号：US20230052928A1
公开(公告)日：2023-02-16
申请号：US17956373
申请日：2022-09-29
发明人： Congrong CHEN , Zhihuan CHEN , Hang CUI , Yuansen XIE
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.
-
公开(公告)号：US20230040107A1
公开(公告)日：2023-02-09
申请号：US17956272
申请日：2022-09-29
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
-
8.发明授权公开(公告)号：US11508993B2
公开(公告)日：2022-11-22
申请号：US16695590
申请日：2019-11-26
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.
-
公开(公告)号：US20210408627A1
公开(公告)日：2021-12-30
申请号：US16637834
申请日：2020-01-09
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.
-
公开(公告)号：US20210020921A1
公开(公告)日：2021-01-21
申请号：US16549144
申请日：2019-08-23
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.
-
-
-
-
-
-
-
-
-
搜索结果
29 条记录 (耗时 0.018 秒)
