A laminate for a battery and a battery with the laminate, where the anode and/or cathode layer is a single layer where anode or cathode material particles are interconnected by an electrically conducting element.

The present disclosure relates to an aqueous binder for a battery electrode, composed of tragacanth gum (TGC), an active material slurry composition for a battery electrode, including the aqueous binder, a battery electrode including the aqueous binder, and a lithium-ion battery including the battery electrode. The aqueous binder for the battery electrode, composed of tragacanth gum, according to the present disclosure may provide a battery electrode which is manufactured by an environmentally friendly and economical method by enabling environmentally friendly water (H.sub.2O) to be used as a solvent instead of a conventional non-aqueous solvent which is expensive and harmful to the environment. Furthermore, a battery manufactured using the aqueous binder composed of tragacanth gum, for example, a lithium-ion battery has an effect that it can provide improved electrochemical properties compared to a lithium-ion battery manufactured using a conventional PVdF-based binder.

A nonaqueous electrolyte secondary battery laminated separator which is not altered in properties even after long-time charging under a high voltage condition and excels in heat resistance is described. The nonaqueous electrolyte secondary battery laminated separator includes a polyolefin porous film and a porous layer, the porous layer contains a binder resin and a filler, and an area of an opening in the nonaqueous electrolyte secondary battery laminated separator is 7.0 mm.sup.2 or less when the nonaqueous electrolyte secondary battery laminated separator is subjected to a certain heat resistance test.

Disclosed is an anodeless-type all-solid-state battery. The all-solid-state battery includes a plurality of recesses formed in an electrolyte layer and to be depressed from a surface of the electrolyte layer contacting an anode collector and thus serve as spaces for lithium to reversibly precipitate.

The electrical resistance of active cathodic and anodic films may be significantly reduced by the addition of small fractions of conductive additives within a battery system. The decrease in resistance in the cathode and/or anode leads to easier electron transport through the battery, resulting in increases in power, capacity and rates while decreasing joules heating losses.

Provided are a lithium ion battery, an electrode of a lithium ion battery, and an electrode material. An electrode material of the lithium ion battery includes electrode active powder and a metal thin film. The metal thin film partially or completely wraps a surface of the electrode active powder, in which the metal thin film includes silver, gold, platinum, palladium, aluminum, magnesium, zinc, tin, or an alloy of the foregoing.

The present disclosure provides an electrode assembly and a related battery, battery module, wherein, the electrode assembly includes: a plurality of first type of electrode plates and at least one second type of electrode plate which are arranged in a superimposing manner, the polarity of the first type of electrode plate is opposite to the polarity of the second type of electrode plate, the plurality of first type of electrode plates comprise a first electrode plate and a second electrode plate, wherein the first electrode plate comprises a first current collector, the second electrode plate comprises a second current collector, and the first current collector is different from the second current collector.

A negative electrode and a lithium ion battery employing the same are provided. The negative electrode includes an active layer and a composite layer disposed on the active layer. The composite layer includes a lithiophilic nanoparticle, a metal nanoparticle and a binder. The binding energy (ΔE) of the lithiophilic nanoparticle with lithium is less than or equal to −2.5 eV. The metal nanoparticle has a standard Gibbs free energy of reaction (ΔrG) less than 0. The weight ratio of the lithiophilic nanoparticle to the metal nanoparticle is from 1:1 to 8:1, and the amount of binder is from 10 wt % to 25 wt %, based on the total weight of the lithiophilic nanoparticle and the metal nanoparticle.

The invention provides a composite-coated nano-tin negative electrode material, which comprises a tin-based nanomaterial, a nano-copper layer coated on the surface of the tin-based nanomaterial and a conductive protective layer coated on the surface of the nano-copper layer. The nano-copper layer can inhibit the volume expansion of nano-tin, keep the nano-tin material from cracking, avoid direct contact between nano-tin and electrolyte to form stable SEI and increase the conductivity of the electrode. Coating a conductive layer on the surface of the nano-copper layer can effectively inhibit the oxidation of nano-copper, thus improving its electrochemical performance. The composite-coated nano-tin negative electrode material according to the invention is used as a negative electrode material of a lithium-ion battery, has excellent electrochemical performance, and has potential application prospects in portable mobile devices and electric vehicles.

A negative electrode material includes a graphite material, an alkali metal salt, and at least one metal material selected from the group consisting of Fe, Mn, Mg, Ni, Pd, Rh, Os, and Pt. The graphite material contains natural graphite.