• 专利标题:   Negative electrode material used in negative electrode composite slurry for lithium ion battery comprises carbon material comprising carbon nanotube, silicon nanomaterial and first solvent, in which the carbon material and the silicon nanomaterial are uniformly mixed in the first solvent.
  • 专利号:   US2021104729-A1, US11322733-B2
  • 发明人:   CHIU C, HUANG C
  • 专利权人:   UNIV NAT TAIWAN SCI TECHNOLOGY
  • 国际专利分类:   H01M010/0525, H01M004/133, H01M004/134, H01M004/62, H01M004/02, H01M004/38, H01M004/583
  • 专利详细信息:   US2021104729-A1 08 Apr 2021 H01M-004/133 202144 English
  • 申请详细信息:   US2021104729-A1 US594594 07 Oct 2019
  • 优先权号:   US594594

▎ 摘  要

NOVELTY - Negative electrode material (100) comprises: 1-30 wt.% carbon material (11) comprising a carbon nanotube; 1-30 wt.% a silicon nanomaterial (12); and a first solvent, where the carbon material and the silicon nanomaterial are uniformly mixed in the first solvent. USE - The electrode material is useful in negative electrode composite slurry for lithium ion battery (all claimed), which is used as the electricity storage and output device for various applications e.g. the portable electronic products (e.g. mobile phones and tablets), the transportation vehicles (e.g. electric vehicles and aerospace vehicles) and the storage of renewable energies. ADVANTAGE - The electrode material: provides the lithium ion battery that is widely applied to the electronic devices because it can be easily miniaturized and have a high capacity, and can obtain higher energy density than the lead-acid battery and nickel-cadmium battery; solves the uneven dispersion issue and prevents the issues of battery expansion, fast capacity fading and low electrical conductivity; provides uniform dispersion; improves the capacity and cycle characteristics of the lithium ion battery; and prevents the issues of battery expansion and low electrical conductivity, thus enhancing the performance of the lithium ion battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a negative electrode composite slurry for a lithium ion battery comprising the material and a graphite mixture material uniformly mixed with the material, where the graphite mixture material comprises 20-40 wt.% graphite, and a second solvent, the graphite is uniformly mixed in the second solvent. DESCRIPTION OF DRAWING(S) - The figure shows a schematic diagram of the uniformly dispersed negative electrode material. Carbon material (11) Silicon nanomaterial (12) Negative electrode material (100)