公开(公告)号：US20220320515A1

公开(公告)日：2022-10-06

申请号：US17709156

申请日：2022-03-30

申请人： LytEn, Inc.

发明人： Elena Rogojina ,  Jerzy Gazda ,  You Li ,  Jesse Baucom ,  Chandra B. KC ,  Jingning Shan ,  Ratnakumar Bugga

IPC分类号： H01M4/62 ,  H01M10/052 ,  H01M4/13

摘要： A lithium-sulfur battery may include a cathode, an anode structure positioned opposite to the cathode, a separator, and an electrolyte. In some instances, the anode structure may include an artificial solid-electrolyte interphase (A-SEI) that may form on and within the anode structure. A protective layer may form within and on the A-SEI, and may include exposed carbon surfaces formed by coalescence of several wrinkled graphene nanoplatelets with one another. Metal-containing substances may be decorated on and/or attached with at least some exposed carbon surfaces and regulate flow of lithium (Li+) cations within the lithium-sulfur battery and correspondingly moderate one or more of a plating rate or a de-plating rate of lithium onto the anode structure. The separator may be positioned between the anode structure and the cathode. The electrolyte may be dispersed throughout the cathode and in contact with the anode structure.

公开(公告)号：US20220271291A1

公开(公告)日：2022-08-25

申请号：US17672960

申请日：2022-02-16

申请人： LytEn, Inc.

发明人： You Li ,  Jesse Baucom ,  Elena Rogojina ,  Chandra B. KC ,  Jingning Shan ,  Jerzy Gazda ,  Ratnakumar Bugga

IPC分类号： H01M4/62 ,  H01M10/0525

摘要： A lithium-sulfur battery including an anode structure, a cathode, a separator, and an electrolyte is provided. A protective layer may form within the anode structure responsive to operational discharge-charge cycling of the lithium-sulfur battery. The protective layer may include a polymeric backbone chain formed of interconnected carbon atoms collectively defining a segmental motion of the protective layer. Additional polymeric chains may be cross-linked to one another and at least some carbon atoms of the polymeric backbone chain. Each additional polymeric chain may be formed of interconnected monomer units. A plasticizer may be dispersed throughout the protective layer without covalently bonding to the polymeric backbone chain. The plasticizer may separate adjacent monomer units of at least some additional polymeric chains. Increasing separation of adjacent monomer units increases a cooperative segmental mobility of the additional polymeric chains and ionic conductivity of the protective layer.

公开(公告)号：US20230035035A1

公开(公告)日：2023-02-02

申请号：US17690923

申请日：2022-03-09

申请人： LytEn, Inc.

发明人： Elena Rogojina ,  Jerzy Gazda ,  You Li ,  Jesse Baucom ,  Chandra B. KC ,  Jingning Shan ,  Ratnakumar Bugga

IPC分类号： H01M4/62 ,  H01M4/80 ,  H01M4/66 ,  H01M10/04

摘要： A lithium-sulfur battery including an anode, a cathode, a separator, and an electrolyte is provided. The lithium-sulfur battery may be formed as a jelly roll. The anode may output lithium cations (Li+) and a solid-electrolyte interphase (SEI) may be formed on the anode. A protective layer may be formed at least partially within and on the SEI. In addition, the protective layer may be positioned proximal to the anode and include wrinkled graphene nanoplatelets and fluorinated poly(meth)acrylates. For example, multiple wrinkled graphene nanoplatelets may be adjoined to one another by flexure points, where each flexure point may provide exposed carbon atoms. In this way, the fluorinated poly(meth)acrylates may be grafted onto at least some exposed carbon atoms. At least some fluorinated poly(meth)acrylates may be compatible with polymerization and cross-linking with one another responsive to exposure to one or more of free-radical initiators or an ultraviolet (UV) energetic environment.

公开(公告)号：US20230035506A1

公开(公告)日：2023-02-02

申请号：US17694407

申请日：2022-03-14

申请人： LytEn, Inc.

发明人： Elena Rogojina ,  Jerzy Gazda ,  You Li ,  Jesse Baucom ,  Chandra B. KC ,  Jingning Shan ,  Ratnakumar Bugga

IPC分类号： H01M50/534 ,  H01M10/052 ,  H01M50/107 ,  H01M4/36 ,  H01M10/0587 ,  H01M4/62

摘要： A method of manufacturing a lithium-sulfur battery in a cylindrical cell format is provided. In some aspects, the method includes providing an anode current collector and providing an anode on the anode current collector. The method may include depositing a protective layer on and along the length of the anode, providing a cathode current collector opposite to the anode, and providing a cathode on the cathode current collector. The method may include providing a separator between the anode and the cathode, disposing an adhesive carbon-containing layer along the bottom edge of the anode (e.g., to replace one or more conventional anode tabs), and dispersing an electrolyte throughout the lithium-sulfur battery. The method may include forming the lithium-sulfur battery in the cylindrical cell format by collectively winding into a jelly roll.

公开(公告)号：US20220263111A1

公开(公告)日：2022-08-18

申请号：US17666753

申请日：2022-02-08

申请人： LytEn, Inc.

发明人： You Li ,  Jesse Baucom ,  Elena Rogojina ,  Chandra B. KC ,  Jingning Shan ,  Jerzy Gazda ,  Ratnakumar Bugga

IPC分类号： H01M10/052 ,  H01M10/0562 ,  H01M4/38 ,  H01M4/04 ,  H01M4/62

摘要： An lithium-sulfur battery including an anode structure, a cathode, a separator, and an electrolyte is provided. The electrolyte may be dispersed throughout the cathode and in contact with the anode. An artificial solid-electrolyte interphase (A-SEI) may form on the anode, and a protective layer (e.g., that may be pinhole free) may form within and/or on the A-SEI to face the cathode. The protective layer may be formed from carbonaceous materials, which may provide exposed carbon atoms grafted with one or more ions, such as fluorine anions (F−), uniformly dispersed throughout the protective layer. In addition, the protective layer may include polymeric chains positioned generally opposite to each other. The polymeric chains may cross-link upon exposure to ultraviolet (UV) energetic radiation to form a three-dimensional (3D) lattice having a defined cross-linking density suitable to trap one or more anions during discharge-charge operational cycling of the lithium-sulfur battery.

公开(公告)号：US11367895B1

公开(公告)日：2022-06-21

申请号：US17584666

申请日：2022-01-26

申请人： LytEn, Inc.

发明人： Jingning Shan ,  You Li ,  Jesse Baucom ,  Elena Rogojina ,  Karel Vanheusden

IPC分类号： H01M10/056 ,  H01M4/136 ,  H01M4/1397 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/02

摘要： An lithium-sulfur battery including an anode, a cathode, and a solid-state electrolyte is provided. The anode may be formed as a single layer of lithium and/or as a cavity. In some aspects, the cavity may receive lithium deposits based on lithium output from the cathode. The cathode may be formed from a composition of matter including pores. A solid-state electrolyte may be dispersed throughout the cathode and in contact with the anode. The solid-state electrolyte may be formed as a membrane and may provide ionic conduction capabilities associated with a separator. The solid-state electrolyte includes a polymer matrix formed of glass fibers interconnected with each other. The polymer matrix has an ionic conductivity and includes polyethylene oxide (PEO), polyvinylidene difluoride (PVDF), polyetheramine having repeated oxypropylene units in its backbone, and one or more lithium-containing salts including one or more of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) or lithium iodide (LiI).

公开(公告)号：US20210359289A1

公开(公告)日：2021-11-18

申请号：US17383793

申请日：2021-07-23

申请人： Lyten, Inc.

发明人： Jerzy Gazda ,  Qianwen Huang ,  Elena Rogojina ,  You Li ,  Jesse Baucom ,  Jeffrey Bell ,  John Thorne ,  Anurag Kumar ,  Jingning Shan

IPC分类号： H01M4/133 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/1393 ,  H01M4/583

摘要： A battery is disclosed that includes an anode, a graded interface layer disposed on the anode, a cathode positioned opposite to the anode, an electrolyte, and a separator. The anode may output lithium ions during cycling of the battery. A graded interface layer may be disposed on the anode and include a tin fluoride layer. A tin-lithium alloy region may form between the tin fluoride layer and the anode. The tin-lithium alloy region may produce a lithium fluoride uniformly dispersed between the anode and the tin fluoride layer during operational cycling of the battery. The electrolyte may disperse throughout the cathode and the anode. The separator may be positioned between the anode and cathode. In some aspects, the battery may also include lithium electrodeposited on one or more exposed surfaces of the anode.