Assignee
A123 SYSTEMS LLC
US·58 granted patents·34 pending applications·94 citations·filing 2012–2025
Top patents by PatentIndex Score
92 records- 0193US9343745B1Surface passivation of active material particles for use in electrochemical cellsA123 SYSTEMS LLC·Filed 2014·Granted May 17, 2016·15 cites·20 claims
- 0292US9660267B2High power electrode materialsA123 SYSTEMS LLC·Filed 2015·Granted May 23, 2017·3 cites·5 claims
- 0391US9252421B1Surface modification of active material structures in battery electrodesA123 SYSTEMS LLC·Filed 2013·Granted Feb 2, 2016·9 cites·16 claims
- 0490US9012094B2Fluoroalkyl containing salts combined with fluorinated solvents for electrolytesA123 SYSTEMS LLC·Filed 2013·Granted Apr 21, 2015·8 cites·20 claims
- 0589US11881707B2Reverse bias protection circuit for a vehicle battery systemA123 SYSTEMS LLC·Filed 2021·Granted Jan 23, 2024·2 cites·11 claims
- 0689US11670938B2Protection circuit for battery management systemA123 SYSTEMS LLC·Filed 2021·Granted Jun 6, 2023·2 cites·11 claims
- 0788US9184468B2Combinations of fluorinated solvents with imide salts or methide salts for electrolytesA123 SYSTEMS LLC·Filed 2013·Granted Nov 10, 2015·6 cites·23 claims
- 0888US9077046B2Electrolytes including fluorinated solvents for use in electrochemical cellsA123 SYSTEMS LLC·Filed 2013·Granted Jul 7, 2015·5 cites·20 claims
- 0988US8999009B2Surface modification of battery materials and method for making a batteryA123 SYSTEMS LLC·Filed 2013·Granted Apr 7, 2015·4 cites·23 claims
- 1086US9300004B2Integral battery tabA123 SYSTEMS LLC·Filed 2013·Granted Mar 29, 2016·5 cites·22 claims
- 1185US9685678B2Electrode materials with a synthetic solid electrolyte interfaceA123 SYSTEMS LLC·Filed 2014·Granted Jun 20, 2017·3 cites·27 claims
- 1285US9350017B2High performance lithium or lithium ion cellA123 SYSTEMS LLC·Filed 2013·Granted May 24, 2016·5 cites·17 claims
- 1384US10218027B2Vehicle starter batteryA123 SYSTEMS LLC·Filed 2014·Granted Feb 26, 2019·5 cites·10 claims
- 1484US9184467B2Low molecular weight salts combined with fluorinated solvents for electrolytesA123 SYSTEMS LLC·Filed 2013·Granted Nov 10, 2015·5 cites·21 claims
- 1584US2023253561A1High power electrode materialsA123 SYSTEMS LLC·Filed 2023·Application pending·0 cites
- 1684US2025070117A1Methods and systems for dry surface doping of cathode materialsA123 SYSTEMS LLC·Filed 2024·Application pending·0 cites
- 1783US2025357473A1Methods and systems for cathode pre-lithiation layerA123 SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 1882US2026016540A1Automatic battery system testing and reporting system and methodsA123 SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 1982US2026100478A1Solid-state electrolyte slurry mixing and coatingA123 SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 2082US2025309256A1Method and systems for coated cathode materials and use of coated cathode materialsA123 SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 2182US2024282936A1Methods and systems for salt-rinse surface doping of electrode materialsA123 SYSTEMS LLC·Filed 2024·Application pending·0 cites
- 2281US12362354B2Method and systems for coated cathode materials and use of coated cathode materialsA123 SYSTEMS LLC·Filed 2019·Granted Jul 15, 2025·1 cites·20 claims
- 2381US9954228B2High power electrode materialsA123 SYSTEMS LLC·Filed 2016·Granted Apr 24, 2018·1 cites·40 claims
- 2480US10270129B2Non-aqueous electrolytic rechargeable batteries for extended temperature range operationA123 SYSTEMS LLC·Filed 2015·Granted Apr 23, 2019·1 cites·11 claims
- 2580US9979053B2Hybrid battery systemA123 SYSTEMS LLC·Filed 2012·Granted May 22, 2018·2 cites·17 claims
- 2680US2024429365A1Cathode with pre-lithiation coating and methods for preparation and useA123 SYSTEMS LLC·Filed 2024·Application pending·0 cites
- 2778US10067197B2System and method for assessing voltage threshold detecting circuitry within a battery packA123 SYSTEMS LLC·Filed 2017·Granted Sep 4, 2018·1 cites·20 claims
- 2878US2024113514A1Protection circuit for battery management systemA123 SYSTEMS LLC·Filed 2023·Application pending·0 cites
- 2977US2024356068A1Systems and methods for a composite solid-state battery cell with an ionically conductive polymer electrolyteA123 SYSTEMS LLC·Filed 2024·Application pending·0 cites
- 3076US12266924B2Protection circuit for battery management systemA123 SYSTEMS LLC·Filed 2023·Granted Apr 1, 2025·0 cites·12 claims
- 3176US12266923B2Protection circuit for battery management systemA123 SYSTEMS LLC·Filed 2023·Granted Apr 1, 2025·0 cites·20 claims
- 3276US10938002B2Battery crush protection systemA123 SYSTEMS LLC·Filed 2016·Granted Mar 2, 2021·1 cites·19 claims
- 3376US2025174640A1Lithium tetraborate glass coating on cathode materials for improving safety and cycling stabilityA123 SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 3475US12412920B2Nanoscale pore structure cathode for high power applications and material synthesis methodsA123 SYSTEMS LLC·Filed 2024·Granted Sep 9, 2025·0 cites·9 claims
- 3575US11652207B2High power electrode materialsA123 SYSTEMS LLC·Filed 2019·Granted May 16, 2023·0 cites·11 claims
- 3674US11916185B2Nanoscale pore structure cathode for high power applications and material synthesis methodsA123 SYSTEMS LLC·Filed 2019·Granted Feb 27, 2024·0 cites·12 claims
- 3774US11196085B2Non-aqueous electrolytic rechargeable batteries for extended temperature range operationA123 SYSTEMS LLC·Filed 2019·Granted Dec 7, 2021·0 cites·11 claims
- 3873US9728759B2Separator for electrochemical cell and method for its manufactureA123 SYSTEMS LLC·Filed 2014·Granted Aug 8, 2017·1 cites·13 claims
- 3972US10147911B2Lithium ion prismatic cell comprising multiple jelly rolls with additional material between jelly rollsA123 SYSTEMS LLC·Filed 2013·Granted Dec 4, 2018·1 cites·3 claims
- 4072US9864014B2System and method for assessing voltage threshold detecting circuitry within a battery packA123 SYSTEMS LLC·Filed 2015·Granted Jan 9, 2018·1 cites·13 claims
- 4172US2025246603A1Abuse-tolerant lithium ion battery cathode blends with symbiotic power performance benefitsA123 SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 4272US2025183305A1Polymer binder additives for electrodesA123 SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 4371US12009507B2Methods and systems for salt-rinse surface doping of electrode materialsA123 SYSTEMS LLC·Filed 2021·Granted Jun 11, 2024·0 cites·15 claims
- 4470US12272823B2Polymer binder additives for electrodesA123 SYSTEMS LLC·Filed 2019·Granted Apr 8, 2025·0 cites·10 claims
- 4570US12244003B2Lithium tetraborate glass coating on cathode materials for improving safety and cycling stabilityA123 SYSTEMS LLC·Filed 2018·Granted Mar 4, 2025·0 cites·20 claims
- 4670US2022359862A1Methods and systems for cathode pre-lithiation layerA123 SYSTEMS LLC·Filed 2022·Application pending·0 cites
- 4769US12418019B2Cathode with pre-lithiation coating and methods for preparation and useA123 SYSTEMS LLC·Filed 2019·Granted Sep 16, 2025·0 cites·15 claims
- 4869US10181599B2Microwave drying of lithium-ion battery materialsA123 SYSTEMS LLC·Filed 2013·Granted Jan 15, 2019·3 cites·17 claims
- 4969US10026942B2Bus bar assembly including integrated bus bar supportA123 SYSTEMS LLC·Filed 2013·Granted Jul 17, 2018·1 cites·20 claims
- 5069US2025087700A1Systems and methods for coating cathode active materialA123 SYSTEMS LLC·Filed 2024·Application pending·0 cites
Showing the top 50 of 92 patent records by PatentIndex Score.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →