摘要:
A battery, such as a lithium-ion battery, comprises a first electrode, a second electrode, a molten salt electrolyte, and an electron collector, associated with the first electrode, the electron collector comprising an electrically conducting film. The battery further includes a protection layer separating the electron collector and the first electrode, the protection layer comprising a carbon-containing material. The electron collector may be an electrically conducting material such as aluminum, aluminum alloy, copper, nickel, other metal (such as alloys), conducting polymer, and the like. In one example, the protection layer is a graphite layer. In other examples, the protection layer may be a fullerene film, carbon nanotube film, or other carbon-containing material.
摘要:
A lithium-ion battery comprises a negative electrode, a positive electrode, and an electrolyte including a molten salt. The positive electrode comprises an electroactive compound including phosphorus, oxygen, lithium, and at least one other metal or semi-metal. The combination of such electrode compositions and a molten salt electrolyte provides a battery with very high thermal stability. Other ions, such as alkal metal ions, may be used in place of lithium ions for applications in other battery technologies.
摘要:
Process for preparing particles of graphite that are purified in surface, from particles of an impure graphite, this process comprises at least one step of treating particles of graphite by means of a diluted aqueous solution of (H2SO4 and NH4F), H2SO4 and NH4F each being present in the diluted aqueous solution at a weight content representing from 5 to 30% of total weight of the aqueous solution, the quantity of diluted aqueous solution representing from 70 to 95% of the weight of the particles of graphite that undergo purification.
摘要翻译:用于制备表面上纯化的石墨颗粒的方法,由不纯的石墨的颗粒,该方法包括通过稀释的(H 2 SO 2)水溶液处理石墨颗粒的至少一个步骤 H 4和SO 4 F,H 2 SO 4和NH 4 F 各自以水溶液总重量的5〜30重量%存在于稀释水溶液中,稀释水溶液的量为进行纯化的石墨颗粒重量的70〜95%。