公开(公告)号：WO2021150851A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/014554

申请日：2021-01-22

Applicant: CPS TECHNOLOGY HOLDINGS LLC

Inventor： SPENCE, Matthew, A.

IPC: H01M4/14 ,  H01M4/56 ,  H01M10/12 ,  H01M4/663 ,  H01M4/685 ,  H01M4/73 ,  H01M4/806

Abstract: A lead-acid battery is described. The lead-acid battery includes a carbon fiber electrode having a grid with a metal alloy strap. In some examples, the metal alloy strap is a lead alloy. Alternatively, the meal alloy strap is an alloy including one or more of lead, calcium, antimony, and tin. In some examples, the metal alloy strap also includes one or more of copper, arsenic, and selenium.

公开(公告)号：WO2022238413A1

公开(公告)日：2022-11-17

申请号：PCT/EP2022/062655

申请日：2022-05-10

Applicant: MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V.

Inventor： HACKNER, Maximilian ,  SPATZ, Joachim

IPC: D04H1/4234 ,  B01D39/10 ,  B01D39/12 ,  B01D39/20 ,  B22F3/00 ,  H01M4/04 ,  H01M4/80 ,  B01D39/2041 ,  B01D39/2044 ,  B22F3/002 ,  H01M4/0471 ,  H01M4/806

Abstract: The invention relates to a method of assembling a fiber network comprising a plurality of metal fibers, wherein the method comprises the following steps: providing a loose network out of the plurality of metal fibers at an assembling site; fixing the plurality of metal fibers to one another by forming contact points between the single metal fibers by heating the plurality of fibers at a heating rate higher than 50 K/min, in particular higher than 100 K/min, especially higher than 200 K/min, preferably higher than 1000 K/min, to a fixation temperature selected in the range of 50 to 98% of their melting point temperature; and cooling the plurality of fibers at a cooling rate higher than 50 K/min, preferably higher than 100 K/min. The invention further relates to a network of metal fibers comprising a plurality of metal fibers fixed one to another at contact points, wherein the metal fibers non- round cross section, in particular a rectangular, quadratic, partial circular or an elliptical cross section with a large axis and a small axis, or wherein the metal fibers comprise a round cross section, and wherein the fibers comprise a width which is generally constant along a length of the fiber such that a variation of the width of the fiber along its length is less than 40%, preferably less than 30%, in particular less than 20%. 20

公开(公告)号：WO2022237967A1

公开(公告)日：2022-11-17

申请号：PCT/EP2021/062443

申请日：2021-05-11

Applicant: MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V.

Inventor： JAHNKE, Timotheus ,  WANG, Yuanzhen ,  HACKNER, Maximilian ,  SPATZ, Joachim

IPC: H01M4/80 ,  H01M4/66 ,  H01M4/02 ,  H01M2004/021 ,  H01M4/661 ,  H01M4/801 ,  H01M4/806

Abstract: The present invention relates to an electrode for a mono- or multivalent ion battery, comprising a three-dimensional network of metal fibers, wherein the metal fibers are directly in contact to one another, and an active material, wherein the network of metal fibers has a thickness in the range of 200 μm to 5 mm. Further, the present invention relates to a battery comprising the electrode of the present invention and to an electric vehicle, comprising the battery of the present invention.

公开(公告)号：WO2022237966A1

公开(公告)日：2022-11-17

申请号：PCT/EP2021/062435

申请日：2021-05-11

Applicant: MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V.

Inventor： HACKNER, Maximilian ,  SPATZ, Joachim

IPC: D04H1/4234 ,  B01D39/10 ,  B01D39/12 ,  B01D39/20 ,  B22F3/00 ,  H01M4/04 ,  H01M4/80 ,  B01D39/2041 ,  B01D39/2044 ,  B22F3/002 ,  H01M4/0471 ,  H01M4/806

Abstract: The invention relates to a method of assembling a fiber network comprising a plurality of metal fibers, wherein the method comprises the following steps: providing a loose network out of the plurality of metal fibers at an assembling site; fixing the plurality of metal fibers to one another by forming contact points between the single metal fibers by (A) heating the plurality of fibers at a heating rate higher than 50 K/min, in particular higher than 100 K/min, especially higher than 200 K/min, preferably higher than 1000 K/min, to a fixation temperature selected in the range of 50 to 98% of their melting point temperature; (B) keeping said fixation temperature for a fixation time selected in the range of 30 seconds to 30 minutes; and (C) cooling the plurality of fibers at a cooling rate higher than 50 K/min, preferably higher than 100 K/min. The invention further relates to a network of metal fibers comprising a plurality of metal fibers fixed one to another at contact points, wherein the metal fibers non-round cross section, in particular a rectangular, quadratic, partial circular or an elliptical cross section with a large axis and a small axis, or wherein the metal fibers comprise a round cross section, and wherein the fibers comprise a width which is generally constant along a length of the fiber such that a variation of the width of the fiber along its length is less than 40%, preferably less than 30%, in particular less than 20%.