公开(公告)号：US20200255958A1

公开(公告)日：2020-08-13

申请号：US16651738

申请日：2018-09-28

Applicant: Battelle Energy Alliance, LLC

Inventor： Tedd E. Lister ,  Eric J. Dufek ,  Aaron D. Wilson ,  Luis A. Diaz Aldana ,  Birendra Adhikari ,  Ningshengjie Gao

IPC: C25B1/04 ,  C25B9/08 ,  C25B13/08 ,  C25B11/04 ,  C25B15/08 ,  B01D53/62 ,  B01D53/78

Abstract: A method of electrochemically reducing CO2 comprises introducing a first feed stream comprising H2O to a positive electrode of an electrolysis cell comprising the positive electrode, a negative electrode, and a proton conducting membrane. A second feed stream comprising a solvent and a non polar form of a switchable polarity material is directed into a CO2 capture apparatus. A third feed stream comprising CO2 is directed into the CO2 capture apparatus to interact with the second feed stream and form a first product stream comprising the solvent and a polar form of the switchable polarity material. The first product stream is introduced to the negative electrode. A potential difference is applied between the positive electrode and the negative electrode to convert the polar form of the switchable polarity material into CO2 and the non-polar form and to form products from the CO2 and the solvent. A CO2 treatment system is also described.

公开(公告)号：US20210263108A1

公开(公告)日：2021-08-26

申请号：US17249158

申请日：2021-02-22

Applicant: Battelle Energy Alliance, LLC

Inventor： Bin Li ,  Eric J. Dufek ,  Ningshengjie Gao

IPC: G01R31/392 ,  H01M10/48

Abstract: Methods for diagnosing failure mechanisms and for predicting lifetime of metal batteries include monitoring rest voltage and Coulombic Efficiency over relatively few cycles to provide profiles that indicate, by the trends thereof, a particular failure mechanism (e.g., electrolyte depletion, loss of metal inventory, increased cell impedance). The methods also include cycling over relatively few cycles an anode-free cell, having the same cathode and electrolyte as the metal battery, but with a current collector instead of the anode. Discharge capacity is monitored and profiled, and a discharge capacity curve is fitted to the discharge capacity profile to discern a capacity retention per cycle. The lifetime of the metal battery is determined using the capacity retention per cycle discerned from the anode-free cell. Related systems include a metal-based battery and an anode-free cell or a battery cell reconfigurable between a metal-based and an anode-free cell.

公开(公告)号：US11740297B2

公开(公告)日：2023-08-29

申请号：US17249158

申请日：2021-02-22

Applicant: Battelle Energy Alliance, LLC

Inventor： Bin Li ,  Eric J. Dufek ,  Ningshengjie Gao

IPC: G01R31/392 ,  H01M10/48

CPC classification number: G01R31/392 ,  H01M10/488

Abstract: Methods for diagnosing failure mechanisms and for predicting lifetime of metal batteries include monitoring rest voltage and Coulombic Efficiency over relatively few cycles to provide profiles that indicate, by the trends thereof, a particular failure mechanism (e.g., electrolyte depletion, loss of metal inventory, increased cell impedance). The methods also include cycling over relatively few cycles an anode-free cell, having the same cathode and electrolyte as the metal battery, but with a current collector instead of the anode. Discharge capacity is monitored and profiled, and a discharge capacity curve is fitted to the discharge capacity profile to discern a capacity retention per cycle. The lifetime of the metal battery is determined using the capacity retention per cycle discerned from the anode-free cell. Related systems include a metal-based battery and an anode-free cell or a battery cell reconfigurable between a metal-based and an anode-free cell.

公开(公告)号：US10975477B2

公开(公告)日：2021-04-13

申请号：US16651738

申请日：2018-09-28

Applicant: Battelle Energy Alliance, LLC

Inventor： Tedd E. Lister ,  Eric J. Dufek ,  Aaron D. Wilson ,  Luis A. Diaz Aldana ,  Birendra Adhikari ,  Ningshengjie Gao

IPC: C25B1/04 ,  B01D53/62 ,  B01D53/78 ,  C25B9/08 ,  C25B11/04 ,  C25B13/08 ,  C25B15/08 ,  C25B3/04

Abstract: A method of electrochemically reducing CO2 comprises introducing a first feed stream comprising H2O to a positive electrode of an electrolysis cell comprising the positive electrode, a negative electrode, and a proton conducting membrane. A second feed stream comprising a solvent and a non polar form of a switchable polarity material is directed into a CO2 capture apparatus. A third feed stream comprising CO2 is directed into the CO2 capture apparatus to interact with the second feed stream and form a first product stream comprising the solvent and a polar form of the switchable polarity material. The first product stream is introduced to the negative electrode. A potential difference is applied between the positive electrode and the negative electrode to convert the polar form of the switchable polarity material into CO2 and the non-polar form and to form products from the CO2 and the solvent. A CO2 treatment system is also described.