公开(公告)号：US20200295333A1

公开(公告)日：2020-09-17

申请号：US16820235

申请日：2020-03-16

Applicant: Purdue Research Foundation

Inventor： Vilas Ganpat Pol ,  Patrick JH Kim

IPC: H01M2/16 ,  H01M4/38 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0567 ,  H01M10/052

Abstract: Separators, materials, and processes for producing electrochemical cells, for example, lithium (Li) metal batteries, and electrochemical cells produced therefrom. Such a separator includes a permeable membrane formed of a first polymer that is hydrophobic and has oppositely-disposed first and second surfaces, a second polymer that is hydrophilic and is incorporated into the first surface of the first polymer so that the first surface of the first polymer is a hydrophilic surface, and a conductive composite layer on the hydrophilic surface. The composite layer contains at least one layer of a carbonaceous material and an aqueous binder that binds the carbonaceous material together and to the hydrophilic.

公开(公告)号：US20190198841A1

公开(公告)日：2019-06-27

申请号：US16228498

申请日：2018-12-20

Applicant: Purdue Research Foundation

Inventor： Vilas Ganpat Pol ,  Patrick JH Kim

IPC: H01M2/16 ,  H01M2/14

CPC classification number: H01M2/1686 ,  H01M2/145 ,  H01M2/166 ,  H01M2/1673

Abstract: A metal-ion deposition regulator to regulate the flux and deposition of metal ions in an electrochemical cell. The regulator containing two membranes made of a polymer and a plurality of two-dimensional porous nanosheets sandwiched between the two membranes. The regulator is capable of distributing flux of metal ions passing through the metal-ion deposition regulator and regulating the deposition of the metal ions onto the cathode or anode thereby suppressing dendrite growth in the electrochemical cell. An electrochemical cell containing an anode, a cathode, a liquid electrolyte, and a metal-ion deposition regulator. A method of making a metal-ion deposition regulator. The method includes fabricating two-dimensional porous nanosheets utilizing graphene oxide as an expendable template, and sandwiching the porous nanosheets between two membranes made of a polymer such that the nanosheets are in contact with the two membranes.

公开(公告)号：US20230378518A1

公开(公告)日：2023-11-23

申请号：US18204226

申请日：2023-05-31

Applicant: Purdue Research Foundation

Inventor： Vilas Ganpat Pol ,  Patrick JH Kim

IPC: H01M10/052 ,  H01M50/44 ,  H01M50/46 ,  H01M50/446 ,  H01M50/426 ,  H01M50/414 ,  H01M50/489 ,  H01M50/491 ,  H01M50/417 ,  H01M50/434 ,  H01M50/451 ,  H01M50/457

CPC classification number: H01M10/052 ,  H01M50/44 ,  H01M50/46 ,  H01M50/446 ,  H01M50/426 ,  H01M50/414 ,  H01M50/489 ,  H01M50/491 ,  H01M50/417 ,  H01M50/434 ,  H01M50/451 ,  H01M50/457

Abstract: A metal-ion deposition regulator to regulate the flux and deposition of metal ions in an electrochemical cell. The regulator containing two membranes made of a polymer and a plurality of two-dimensional porous nanosheets sandwiched between the two membranes. The regulator is capable of distributing flux of metal ions passing through the metal-ion deposition regulator and regulating the deposition of the metal ions onto the cathode or anode thereby suppressing dendrite growth in the electrochemical cell. An electrochemical cell containing an anode, a cathode, a liquid electrolyte, and a metal-ion deposition regulator. A method of making a metal-ion deposition regulator. The method includes fabricating two-dimensional porous nanosheets utilizing graphene oxide as an expendable template, and sandwiching the porous nanosheets between two membranes made of a polymer such that the nanosheets are in contact with the two membranes.