公开(公告)号：US12062757B2

公开(公告)日：2024-08-13

申请号：US16918763

申请日：2020-07-01

申请人： A123 Systems LLC

发明人： Wesley Hoffert ,  Adriana A. Rojas ,  David M. Laughman ,  Lucienne Buannic ,  Derek C. Johnson ,  Brian Sisk ,  Brian Chiou ,  Thomas Gillooly

IPC分类号： H01M10/0565 ,  H01M4/04 ,  H01M4/62 ,  H01M10/0585 ,  H01M4/02

CPC分类号： H01M10/0565 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/62 ,  H01M10/0585 ,  H01M2004/021 ,  H01M2300/0082

摘要： Systems and methods are provided for a slurry for coating an electrode structure. In one example, a method may include dispersing, by mixing at one or both of a high shear and a low shear, a solid ionically conductive polymer material in at least a first portion of a solvent to form a suspension, then dispersing, by mixing at the one or both of the high shear and the low shear, one or more additives in the suspension, and then mixing, at the one or both of the high shear and the low shear, a second portion of the solvent with the suspension to form a slurry. As such, the slurry including the solid ionically conductive polymer material may be applied as a coating in a solid-state battery cell, which may reduce resistance to Li-ion transport and improve mechanical stability relative to a conventional solid-state battery cell.

公开(公告)号：US20230253780A1

公开(公告)日：2023-08-10

申请号：US18302732

申请日：2023-04-18

申请人： A123 Systems LLC

发明人： Yue Li ,  Steve Gierlach ,  Weiwei Lin ,  Brian Large ,  Jiaping Zhang ,  Ke Xu

IPC分类号： H02H7/18 ,  B60L50/60 ,  H02H1/00 ,  B60L58/10 ,  H01M10/42

CPC分类号： H02H7/18 ,  B60L50/66 ,  H02H1/0007 ,  B60L58/10 ,  H01M10/4257 ,  H01M2010/4271 ,  H01M2220/20

摘要： Systems and methods are provided for a battery management system (BMS) having a protection circuit. In one example, a vehicle battery system may include the BMS, the BMS including a cutoff circuit coupled to a short-circuit protection circuit, and a battery pack, wherein the short-circuit protection circuit may include a diode array, cathodes of the diode array being coupled to a positive terminal post of the battery pack and anodes of the diode array being coupled to a negative terminal post of the battery pack. In some examples, the cutoff circuit may further be coupled to a reverse bias protection circuit including a switchable current path arranged between a control input of the cutoff circuit and an output of the cutoff circuit. In this way, the vehicle battery system may be protected from unexpected voltage conditions via the BMS redirecting and dissipating excess current away from the cutoff circuit.

公开(公告)号：US11476679B2

公开(公告)日：2022-10-18

申请号：US16898214

申请日：2020-06-10

申请人： A123 Systems LLC

发明人： Bruce Blakemore ,  Hamid Falahati ,  Patrick Larochelle

IPC分类号： H02J7/00 ,  B60K6/28

摘要： A battery pack system and methods for operating the battery pack system are disclosed. In one example, the battery pack system may simultaneously output two different voltages from a stack of battery cells. One voltage may be applied to a first group of electric power consumers and the second voltage may be applied to a second group of electric power consumers.

公开(公告)号：US20220246940A1

公开(公告)日：2022-08-04

申请号：US17648797

申请日：2022-01-24

申请人： A123 Systems LLC.

发明人： Linghong Zhang ,  Derrick Maxwell ,  Shaocheng HU ,  Claire Whitaker ,  Wilber Zuo ,  Jun Wang ,  Taehwan Yu

IPC分类号： H01M4/62 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/58

摘要： Systems and methods are provided for passivating lithium nitride (Li3N) for use in a lithium-ion battery as a cathode pre-lithiation reagent. In one example, the cathode pre-lithiation reagent may include a core particle composed of Li3N, and a passivation coating uniformly disposed on at least a portion of a surface of the core particle. In some examples, the passivation coating may cover a majority of the surface of the core particle or may substantially completely cover the surface of the core particle. The cathode pre-lithiation reagent may further be included in the lithium-ion battery, where the passivation coating may mitigate unwanted side reactions during processing and manufacturing. In this way, Li3N may be successfully and reproducibly utilized as a cathode pre-lithiation reagent, such that initial lithium ion consumption may be compensated and capacity of the lithium-ion battery may be concomitantly increased.

公开(公告)号：US20220037651A1

公开(公告)日：2022-02-03

申请号：US17443805

申请日：2021-07-27

申请人： A123 Systems LLC

发明人： Lei Liu ,  Kitae Kim ,  Lixin Wang ,  Anil Parmar ,  Bryan Kim ,  Chloe Harrison ,  Andrew Millonig ,  Derek Johnson ,  Eunsung Lee ,  Taehwan Yu

IPC分类号： H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/04 ,  C01G53/00

摘要： Methods and systems are provided for salt-rinse surface doping of electrode materials for lithium-ion batteries. In one example, a method may include dissolving a dopant salt in a solvent to form a dopant salt rinse solution, rinsing an electrode active material with the dopant salt rinse solution to form a coated electrode active material, and heating the coated electrode active material to form a doped electrode active material. In some examples, a surface region of the doped electrode active material may include a uniform distribution of dopants from the dopant salt rinse solution. In this way, the electrode active material may be rinsed and doped via the dopant salt rinse solution in a single-stage process.

公开(公告)号：US20210399308A1

公开(公告)日：2021-12-23

申请号：US17354959

申请日：2021-06-22

申请人： A123 Systems, LLC

发明人： Tae Kyoung Kim ,  Jun Wang ,  Ronnie Wilkins ,  Jordan Rubio ,  Ankita Faulkner ,  Zaiyuan Le ,  Xiqing Wang ,  Ting Huang

IPC分类号： H01M4/66 ,  H01M4/04 ,  H01M4/62 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

摘要： Systems and methods are provided for an electrode for a lithium-ion battery cell. In one example, the electrode may include a current collector having two opposing sides, at least one of the two opposing sides being configured with a first coating layer disposed on the current collector at a first loading, where the first coating layer may include a first binder in a first weight ratio, and a second coating layer disposed on the first coating layer at a second loading, where the second coating layer may include a second binder in a second weight ratio, wherein the first weight ratio may be greater than the second weight ratio, and a ratio of the first loading to the second loading may be less than 1:2. In this way, direct current internal resistance of the lithium-ion battery cell may be decreased while maintaining or increasing adhesion within the electrode.

公开(公告)号：US20210391578A1

公开(公告)日：2021-12-16

申请号：US17286430

申请日：2019-10-11

申请人： A123 Systems LLC

发明人： Lixin Wang ,  Weidong Zhou ,  Yao Chen ,  Chloe Harrison ,  Fu Zhou ,  Kitae Kim ,  Jun Wang ,  Derek C. Johnson

IPC分类号： H01M4/62 ,  H01M10/0525 ,  C01F7/02 ,  C01G53/00

摘要： Methods and systems are provided for an electrode active material for lithium ion batteries. In one example, the electrode active material may include a lithium mixed metal oxide core and flame-retardant dusting particles partially retained within a surface of the core. In some examples, the dusting particles may have an average size of less than 20 μm. In some examples, the amount of dusting particles by weight may be greater than 0.1% of the core particles and less than 50% of the core particles. In another example, methods are provided for manufacturing the electrode active material for use in a lithium ion battery, where lithium metal composite core particles may be mixed with the flame-retardant dusting particles in a dry process.

公开(公告)号：US10305104B2

公开(公告)日：2019-05-28

申请号：US13079683

申请日：2011-04-04

申请人： Young-Il Jang

发明人： Young-Il Jang

IPC分类号： H01M4/52 ,  H01M4/64 ,  H01M4/66 ,  H01M10/04 ,  H01M4/02 ,  H01M4/525 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M10/052

摘要： A lithium-ion battery having over-discharge protection includes an anode comprising at least an electrochemically active anode material, said anode having an anode irreversible capacity loss during a first charge of the lithium-ion battery; and a cathode comprising at least an electrochemically active cathode material characterized by the formula: xLi2MnO3.(1−x)LiMnaNibCocO2, where 0

公开(公告)号：US10218027B2

公开(公告)日：2019-02-26

申请号：US14537812

申请日：2014-11-10

申请人： A123 Systems, LLC

发明人： Jerry Gohl ,  Timothy Hughes ,  Arfan Ahmad ,  Jason Davis ,  Robert Dickie ,  Kevin Martus ,  Michael Shenberger ,  David Allen

IPC分类号： H01M10/04 ,  H01M2/10 ,  H01M10/0525 ,  H01M2/04 ,  H01M2/26 ,  H01M10/0585 ,  H01M10/48 ,  H01M2/02

摘要： A starter battery is provided comprising a plurality of pouch-type prismatic cells stacked to form an array and configured to output a voltage sufficient to start a vehicle engine. The starter battery further includes a housing configured to contain the array wherein the housing includes a tray and a lid attached with the tray such that the housing provides a compressive force sufficient to prevent cell delamination and to constrain expansion or swelling of the cells during operation.

公开(公告)号：US10079371B2

公开(公告)日：2018-09-18

申请号：US15110729

申请日：2015-01-09

申请人： A123 Systems, LLC

发明人： James E. Dawson ,  Mujeeb Ijaz

IPC分类号： H01M2/02 ,  H01M10/0587 ,  H01M2/30 ,  H01M10/04 ,  H01M2/04 ,  H01M2/24 ,  H01M10/0525

CPC分类号： H01M2/0242 ,  H01M2/046 ,  H01M2/24 ,  H01M2/30 ,  H01M10/0422 ,  H01M10/0525 ,  H01M10/0587

摘要： An electrochemical storage multi-cell may comprise: a housing, including a plurality of concentric annular cell chambers; a plurality of electrochemical storage cells, wherein each of the plurality of annular cells are positioned in one of the plurality of annular cell chambers, and the plurality of annular cells are electrically connected in series; and conductive electrolyte filling each of the annular cell chambers.