Method for manufacturing negative electrode for lithium ion battery, involves reducing metal salts under deposition of copper, nickel or metal alloy, and mixing silicon particles with graphite particles, binder and additive

摘要

The method involves providing silicon particles with an average particle size. Graphite particles are provided with an average particle size within a range of 1-50 micrometer. The silicon particles are mixed with a copper salt, a nickel salt or a mixture of metal salts incorporating the nickel and copper salts. The salts are reduced under deposition of copper, nickel or a metal alloy incorporating the copper and/or the nickel. The silicon particles are mixed with the graphite particles, an electrode binder, an additive and a suspending agent. The mixture is applied on a current collector. An independent claim is also included for an electrode for a lithium ion battery.