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AssigneeUbe Industries, Ltd.
InventorsShigeru Yao, Shyusei Ohya, Yukihiko Asano, Toshikazu Hamamoto, Kazuhiro Miyoshi
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An electrode material for a secondary cell comprising as its essential component a powder of graphite having a crystallinity of 90% or more obtained by graphitizing a highly heat resistant polymer compact in an anaerobic atmosphere and crushing into a powder, and a process for the production of an electrode material for a secondary cell comprising heating and graphitizing a composition in which 0-10 wt % of a boron compound is added to a highly heat-resistant polymer to produce a powder of graphite having crystallinity of 90% or more contained as its essential component. An electrode material for a secondary cell having excellent charge/discharge cycle life and discharge voltage performance is provided.
An electrode material for a secondary cell comprising, as its essential component, a powder of graphite having crystallinity of 90% or more obtained by graphitizing a highly heat resistant polymer in an anaerobic atmosphere.
An electrode material for a secondary cell comprising as its essential component a powder of graphite having crystallinity of 90% or more obtained by heating and graphitizing a graphite precursor in which 0-10 wt % of a boron compound is added to a highly heat resistant polymer.
A process for the production of an electrode material for a secondary cell comprising:
Dependencies are inferred from the claim text.