A carbon layer on a silicon anode not only acts as a structural buffer to alleviate the tremendous volume expansion of silicon, but also enhances electrical conductivity. However, the carbon layer cannot improve the diffusion kinetics of Li + . Molybdenum disulfide (MoS 2 ) nanosheets are introduced on the outermost layer of yolk-shell silicon@carbon to design urchin-like hierarchical anode materials, which is of great benefit in structural stability. By contrast with the yolk-shell silicon@carbon structure, the diffusion coefficient of Li + is improved, with 3.27 times greater performance during the delithiation processes and 2.04 times greater during the lithiation process with urchin-like hierarchical structure, showing robust diffusion kinetics. Moreover, the MoS 2 nanosheets are able to enhance the delithiation reversibility of Li 15 Si 4 alloy formed during lithiation process. Because the MoS 2 nanosheets promote the structural stability, delithiation reversibility, and diffusion kinetics of Li + during lithiation/delithiation processes, the prepared hierarchical Si@C@MoS 2 composites exhibit a high reversible specific capacity of 1025 mAh g À 1 with a capacity retention of approximately 81 % after 400 cycles at a current density of 1000 mAh g À 1 , and the reversible specific capacity can reach 819 mAh g À 1 even under a high rate of 5000 mA g À 1 .
Transition metal oxides (TMOs) are promising materials for next-generation lithium-ion batteries while the lithium storage and cycling stability of TMOs are still limited. Herein, a novel Co 3 O 4 /MnO 2 /C composite using metal-organic frameworks (MOFs) as sacrificial templates is reported. MnO 2 and C shells are layer by layer coated on the MOF-derived Co 3 O 4 /C samples via hydrothermal technique and heat treatment. When employed as anode materials for LIBs, the hierarchically hetero-structured Co 3 O 4 /MnO 2 /C composites incorporate the merits of Co 3 O 4 , MnO 2 , and C, showing high Li storage performances at a current density of 0.2 A g À 1 with an initial capacity of ∼ 1245.7 mAh g À 1 and a reversible capacity of ∼ 854.9 mAh g À 1 after 100 cycles, remarkable cycling stability, and excellent rate capability (almost 98 % recovery as the current density returns to the initial 0.2 A g À 1 , and especially, the specific capacity remains ∼ 587.6 mAh g À 1 at a high current density of 2.0 A g À 1).
All organizations and individuals that purchase counterfeit products ought to be protected by the law. However, the Law of the People's Republic of China on the Protection of Consumer Rights and Interests (referred to as "the new Consumer Law") is not applicable to all of them. Each law has its scope of application, and all legal norms and terms have specific connotation and extension for which arbitrary interpretation is not allowed. Currently, how to identify a person who knowingly buys fake products is usually determined based on whether the purchase is made "for the needs of daily consumption". The paper applies case study and comparative analysis methods to analyze the legislative purpose of the New Consumer Law, the practical dilemma of the primary criterion to identify the purpose of buying fake products, and the position change of these people throughout the revision of the Consumer Law, aiming to argue that whether a "knowingly-buy-fake" consumer is protected by the New Consumer Law should be determined by whether the buyer is in a disadvantaged position compared to the business operators. The consumer identity should be denied, nevertheless the legitimate rights and interests of them, as civil subjects, shall still be effectively protected by relevant laws.
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