• 专利标题:   Lithium-ion battery has cathode active material that consists of compound with olivine structure and cathode active material, and anode active material is prelithiated before first discharging and or charging process of lithium ion battery.
  • 专利号:   DE102020111237-A1
  • 发明人:   JUNG R, WOEHRLE T
  • 专利权人:   BAYERISCHE MOTOREN WERKE AG
  • 国际专利分类:   H01M010/058, H01M010/0525, H01M004/136, H01M004/133, H01M004/134, H01M004/131, H01M010/04
  • 专利详细信息:   DE102020111237-A1 28 Oct 2021 H01M-010/058 202189 Pages: 11 German
  • 申请详细信息:   DE102020111237-A1 DE10111237 24 Apr 2020
  • 优先权号:   DE10111237

▎ 摘  要

NOVELTY - The battery has a cathode comprising a cathode active material and an anode comprising an anode active material. The cathode active material consists of compound with an olivine structure and cathode active material has a total degree of lithiation L less than 1. The anode active material is prelithiated before the first discharging and/or charging process of the lithium ion battery. The anode active material is selected from the group consisting of carbon-containing materials, silicon, silicon suboxide, silicon alloys, lithium, lithium alloys, aluminum alloys, indium, indium alloys, tin, tin alloys, cobalt alloys, niobium pentoxide, titanium dioxide, titanates, tin dioxide, selected from the group consisting of synthetic graphite, natural graphite, graphene, mesocarbon, doped carbon, hard carbon, soft carbon, fullerene, silicon-carbon composite, silicon, surface-coated silicon, silicon suboxide, silicon alloys, lithium, aluminum alloys, indium, tin alloys, cobalt alloys and mixtures. USE - Lithium-ion battery e.g. solid-state battery such as ceramic or polymer-based solid-state battery used in motor vehicle or portable device such as smartphone, power tool or power tool, tablet or computer system integrated into clothing. Can also be used in a stationary storage device. ADVANTAGE - The lithium-ion battery which has a higher specific energy and a higher current carrying capacity, can be manufactured in a cost-effective manner. The compounds with an olivine structure are very stable, which further increases the intrinsic safety of the lithium-ion battery in the event of electrical, mechanical, and thermal stress. It is possible to keep the loading of the cathode constant compared to the reference example and to slightly increase the loading of the anode in order to further increase the nominal capacity, specific energy and energy density of the lithium ion battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing a lithium-ion battery.