公开(公告)号：US20240356068A1

公开(公告)日：2024-10-24

申请号：US18755512

申请日：2024-06-26

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：US20240282936A1

公开(公告)日：2024-08-22

申请号：US18645218

申请日：2024-04-24

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 ,  C01G53/00 ,  H01M4/02 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525

CPC分类号： H01M4/366 ,  C01G53/50 ,  H01M4/049 ,  H01M4/505 ,  H01M4/525 ,  C01P2002/52 ,  C01P2004/80 ,  C01P2006/40 ,  H01M2004/028

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：US20240162477A1

公开(公告)日：2024-05-16

申请号：US18420677

申请日：2024-01-23

申请人： A123 Systems LLC

发明人： Chuanjing Xu ,  Maha Hammoud ,  Judith M. LaForest ,  Hyojin Lee ,  Derek Johnson

IPC分类号： H01M10/052 ,  C01B25/45 ,  H01M4/136 ,  H01M4/58

CPC分类号： H01M10/052 ,  C01B25/45 ,  H01M4/136 ,  H01M4/5825 ,  Y02T10/70

摘要： A lithium iron phosphate electrochemically active material for use in an electrode and methods and systems related thereto are disclosed. In one example, a lithium iron phosphate electrochemically active material for use in an electrode is provided including, a dopant comprising vanadium and optionally a co-dopant comprising cobalt.

公开(公告)号：US20220020977A1

公开(公告)日：2022-01-20

申请号：US17414304

申请日：2019-12-20

申请人： A123 Systems LLC

发明人： Derrick Maxwell ,  Xiangyang Zhu ,  Jun Wang ,  Taehwan Yu ,  Weidong Zhou ,  Sookyung Jeong ,  Derek C. Johnson ,  Linghong Zhang ,  Kerui Sun ,  Nathan Reinsma ,  Xiaorui Chen

IPC分类号： H01M4/1391 ,  H01M10/0525 ,  H01M4/525 ,  C01G53/00

摘要： Methods and systems are provided for a cathode material for lithium ion batteries. In one example, the cathode material may include a lithium mixed metal oxide core and a surface coating surrounding the core. Optionally, a passivating layer may continuously surround the surface coating. In some examples, the surface coating or surface layer may include a sacrificial lithium source, a lithium-based active cathode catalyst, or a combination thereof. In other examples, methods are provided for manufacturing the cathode material for use in a lithium ion battery.

公开(公告)号：US11088389B2

公开(公告)日：2021-08-10

申请号：US15739665

申请日：2016-06-08

申请人： A123 SYSTEMS LLC

发明人： Chuanjing Xu ,  Maha Hammoud ,  Judith M. Laforest ,  Hyojin Lee ,  Derek Johnson

IPC分类号： H01M10/052 ,  H01M4/136 ,  H01M4/58 ,  C01B25/45

摘要： A lithium iron phosphate electrochemically active material for use in an electrode and methods and systems related thereto are disclosed. In one example, a lithium iron phosphate electrochemically active material for use in an electrode is provided including, a dopant comprising vanadium and optionally a co-dopant comprising cobalt.

公开(公告)号：US11081743B2

公开(公告)日：2021-08-03

申请号：US16090135

申请日：2017-03-31

申请人： A123 Systems LLC

发明人： Yang Chen ,  Jonathan Hostler ,  Dylan Propst

IPC分类号： H01M10/647 ,  H01M10/653 ,  H01M10/613 ,  H01M50/20 ,  H01M50/103 ,  H01M10/6551 ,  H01M10/0525 ,  H01M10/42

摘要： Disclosed herein, is a battery module that comprises an encapsulant material exhibiting improved thermal transfer and heat dissipation characteristics. In one example embodiment, the battery module comprises a “stack” of cells, wherein at least some of the cells, and optionally each cell, is not separated by a metal plate or tab-shaped heat sink layer, and instead, the cells are substantially surrounded by an encapsulant material and stacked directly upon one another.

公开(公告)号：US20200259164A1

公开(公告)日：2020-08-13

申请号：US16858487

申请日：2020-04-24

申请人： A123 Systems, LLC

发明人： Jun Wang ,  Paul Gionet ,  Hungoo Cho ,  Leslie J. Pinnell ,  Robert W. Grant

IPC分类号： H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M4/66 ,  H01M10/052 ,  H01M4/04 ,  H01M4/133 ,  H01M10/0525

摘要： A pre-lithiated silicon anode comprising a PVDF binder at 5-12 wt. % for use in a Li-ion cell is provided. In particular instances, a conductive additive may be added at less than 5 wt. %. The Si anode with PVDF binder is pre-lithiated prior to cell assembly and following Si anode fabrication. The combination of pre-lithiation and PVDF in the Si anode for use in a rechargeable Li-ion cell shows the unexpected result of extending the cycle life.

公开(公告)号：US20200052263A1

公开(公告)日：2020-02-13

申请号：US16607355

申请日：2018-04-23

申请人： A123 Systems LLC

发明人： Jonathan Hostler ,  Antoine Jourdan ,  Peter Won

IPC分类号： H01M2/10 ,  H01M10/653

摘要： Methods and systems are provided for a battery encapsulant. In one example, a method may include a battery encapsulant surrounding one or more battery cells of a vehicle battery, where the encapsulant comprises a Young Modulus between 0.05 to 0.15 GPa after being cured.

公开(公告)号：US10522833B2

公开(公告)日：2019-12-31

申请号：US15495886

申请日：2017-04-24

申请人： A123 Systems LLC

发明人： Larry Beck ,  Jennifer Wilson ,  Chuanjing Xu ,  Zhong-You Shi ,  Maha Hammoud

IPC分类号： H01M4/58 ,  C01B25/45 ,  H01M4/136 ,  C01B25/37 ,  H01M4/587 ,  H01M10/0525

摘要： An LFP electrode material is provided which has improved impedance, power during cold cranking, rate capacity retention, charge transfer resistance over the current LFP based cathode materials. The electrode material comprises crystalline primary particles and secondary particles, where the primary particle is formed from a plate-shaped single-phase spheniscidite precursor and a lithium source. The LFP includes an LFP phase behavior where the LFP phase behavior includes an extended solid-solution range.

公开(公告)号：US10181599B2

公开(公告)日：2019-01-15

申请号：US14385761

申请日：2013-03-14

申请人： A123 Systems, LLC

发明人： Chad Allison ,  Iftikhar Ahmad

IPC分类号： H01M4/1391 ,  H01M4/133 ,  H01M10/0525 ,  F26B3/347 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1393 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/66 ,  H01M10/04 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/058 ,  F26B13/10 ,  F26B21/14

摘要： A method for making a lithium-ion cell includes depositing an electrode material as a coating on a substrate of the lithium-ion cell, irradiating the deposited electrode material with microwave radiation of varying frequency, wetting the irradiated electrode material with a non-aqueous electrolyte solution, and sealing the wetted electrode material in an air-tight enclosure.