公开(公告)号：US09937481B1

公开(公告)日：2018-04-10

申请号：US15405364

申请日：2017-01-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Meiyuan Wu ,  Zhiqiang Yu ,  Xiusheng Zhang

IPC: B01J19/24 ,  H01G13/04 ,  H01M4/23 ,  F26B21/14 ,  H01M10/42

CPC classification number: B01J19/24 ,  B01J2219/24 ,  F26B21/14 ,  H01G13/04 ,  H01M4/23 ,  H01M10/4207

Abstract: A reaction vessel in the form of a box is sized to closely contain electrode elements or core cell elements of a lithium-based or sodium-based battery or capacitor for contacting of the electrode material, placed in the reaction vessel, with a flowing gaseous stream of an inert carrier gas and vapor of an organic solvent of water for removing residual water from the porous electrode material elements which are to be infiltrated with a non-aqueous electrolyte solution. Complementary equipment is provided for delivering the gaseous stream to the reaction vessel with predetermined portions of carrier gas and organic vapor at a predetermined temperature, pressure, and flow rate.

公开(公告)号：US20170162917A1

公开(公告)日：2017-06-08

申请号：US15355101

申请日：2016-11-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhiqiang Yu ,  Dewen Kong ,  Meiyuan Wu

IPC: H01M10/42 ,  H01M4/485 ,  H01G11/86 ,  H01G11/06 ,  H01G11/46 ,  H01M10/0525 ,  H01M4/505

CPC classification number: H01M10/4235 ,  H01G11/06 ,  H01G11/46 ,  H01G11/50 ,  H01G11/86 ,  H01M4/13 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0567 ,  H01M2220/20 ,  H01M2300/0025 ,  Y02E60/122

Abstract: An assembled electrochemical cell is formed comprising an anode containing sub-micrometer and micrometer-size particles of an anode material for cyclically intercalating and de-intercalating lithium ions or sodium ions, a cathode containing like-sized particles of a cathode material for intercalating and de-intercalating the ions utilized in the anode, and a non-aqueous electrolyte composed for transporting ions between the anode and cathode. Nanometer-size particles of a basic metal oxide or a metal nitride are mixed with at least one of (i) the particles of electrode material for at least one of the anode and cathode and (ii) the electrolyte. The composition and the amount of the metal oxide or metal nitride is determined for chemically neutralizing acidic contaminants formed in the operation of the electrochemical cell, adsorbing incidental water, and to generally prevent degradation of the respective electrode materials.