Hemp straw carbon and Ni/NiO embedded structure composites as anode materials for lithium ion batteries

•The compound based on hemp straw carbon hydrothermal composite Ni/NiO nano-spherical particles is prepared.•The material of Ni/NiO/HHS-600 has displayed excellent electrochemical properties.•The capacity of Ni/NiO/HHS-600 can be maintained at 1200 mA h g−1 after 650 cycles at 2 C. The composite mat...

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