Method for producing shaped bodies for lithium ion batteries

H - Electricity – 01 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01M 4/04 (2006.01) H01G 9/00 (2006.01) H01G 9/02 (2006.01) H01M 2/16 (2006.01) H01M 4/02 (2006.01) H01M 4/62 (2006.01) H01M 6/40 (2006.01) H01M 2/14 (2006.01) H01M 6/18 (2006.01) H01M 10/40 (2006.01) H01M 4/48 (2006.01) H01M 4/50 (2006.01) H01M 4/52 (2006.01) H01M 4/58 (2006.01)

Patent

CA 2285007

The invention relates to a method for producing shaped bodies, preferably for a film-like shaped body, comprising the following steps: I) compounding and melt extrusion of a mixture (I) comprising a mixture (II) containing a) 1 to 95 wt. % of at least a pigment (III) with a primary particle size ranging from 5 nm to 20mm, selected from the group consisting of one electrochemically inert solid (IIIa), of a compound (IIIb) capable of giving off lithium ions when charged, and a compound (IIIc), capable of receiving lithium ions when charged, and a mixture of solid (IIIa) with compounds (IIIb) or compound (IIIc), b) 5 to 99 wt. % of at least one polymer binding agent (IV), and c) 0 to 200 wt. % of at least one softening agent (V) in relation to the overall amount of constituents a) and b), wherein the weight percentage of mixture (II) in mixture (I) ranges from 1 to 100 wt. %, and excluding mixtures (I) comprising mixtures (II) containing a copolymer consisting of vinylidene fluoride (Vdf) and hexafluoropropylene (HFP) with a HFP content ranging from 8 to 25 wt. % as a polymer binding agent (IV) and a compound as a softening agent (V) which is selected from the group consisting of dibutyl phthalate, dimethyl phthalate, diethyl phthalate, tris(butoxy)ethyl phosphate, propylene carbonate, ethylene carbonate, trimethyl trimellitate and mixtures thereof.

L'invention concerne un procédé de production d'un corps moulé, de préférence d'un corps moulé pelliculaire, comportant les étapes suivantes: I) mélangeage et extrusion ou fusion d'un mélange (I) comprenant un mélange (II) qui contient: a) 1 à 95 % en poids d'au moins un pigment (III) avec une taille de particule primaire de 5 nm à 20 mm, choisi dans le groupe constitué d'une matière solide (IIIa) inerte électrochimiquement, d'un composé (IIIb) capable de libérer des ions de lithium lors du chargement et d'un composé (IIIc) capable de recevoir des ions de lithium lors du chargement, ainsi que d'un mélange de la matière solide (IIIa) et du composé (IIIb) ou du composé (IIIc), b) de 5 à 99 % en poids d'au moins un liant polymère (IV), c) et de 0 à 200 % en poids, par rapport au volume total des constituants a) et b), d'au moins un plastifiant (V). La proportion en poids du mélange (II) dans le mélange (I) va de 1 à 100 % en poids et on exclut les mélanges (I) comprenant les mélanges (II) contenant, comme liant polymère (IV), un copolymère de fluorure de vinylidène et d'hexafluoropropylène avec une proportion d'hexafluoropropylène de 8 à 25 % en poids et, comme plastifiant (V), un composé choisi dans le groupe comprenant du phtalate de dibutyle, phtalate de diméthyle, phtalate de diéthyle, tris(butoxy)éthylphosphate, carbonate de propylène, carbonate d'éthylène, trimellate de triméthyle et des mélanges de ces derniers.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method for producing shaped bodies for lithium ion batteries does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing shaped bodies for lithium ion batteries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing shaped bodies for lithium ion batteries will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1459200

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.