A positive electrode for a rechargeable lithium battery includes a positive active material for a rechargeable lithium battery that includes a first positive active material including a secondary particle including at least two agglomerated primary particles, where at least a portion of the primary particles has a radial arrangement structure, and a second positive active material having a monolith structure, wherein the first and second positive active materials each include a nickel-based positive active material, and an X-ray diffraction (XRD) peak intensity ratio (I(003)/I(104)) of the positive electrode is greater than or equal to about 3. Further embodiments provide a method of manufacturing the positive electrode for rechargeable lithium battery, and a rechargeable lithium battery including the same.

Lithium metal anodes have a current collector foil laminated to a layer of lithium metal (or alloy) which has particulate materials at least partially embedded therein to reduce dendrite formation and thus improve the performance and cycle life of the anode. The lithium anodes are conveniently produced using a roller press process.

A lithium manganate positive electrode active material, comprising a lithium manganate matrix and a cladding layer as a “barrier layer” and a “functional layer” are described. The cladding layer can not only “prevent” the transition metal ions which have been produced by the lithium manganate matrix from directly “running” into the electrolyte solution, but also “prevent” the hydrofluoric acid in the electrolyte solution from directly contacting with the lithium manganate substrate, and then prevent the lithium manganate matrix from dissolving out more transition metal manganese ions; as a “functional layer”, the cladding layer contains various effective ingredients inside, which can reduce the transition metal manganese ions already present inside the battery through chemical reactions or adsorption effects, thus slowing down the generation of transition metal manganese and the decomposition of the SEI film (solid electrolyte interphase film) catalyzed by the transition metal manganese.

A lithium-ion secondary battery including positive and negative electrodes, a separator element, an electrical conductor element and a binder, wherein the positive electrode includes a lithium-containing metal phosphate compound coated with a carbon material having at least one phase selected from a graphene phase and an amorphous phase, and further includes carbon black and a fibrous carbon material and wherein the negative-electrode material includes a graphite carbon material having at least one carbon phase selected from a graphene phase and an amorphous phase, and further includes carbon black and a fibrous carbon material, and wherein the binder includes a water-soluble synthetic resin or a water-dispersible synthetic resin. The most preferred positive electrode includes LiFePO.sub.4, The most preferred negative electrode includes artificial graphite or graphitazable powder. The most preferred binder is carboxyl methyl cellulose further including a surface active agent. A method of making the lithium-ion secondary battery.

Covalent organic frameworks (COFs) usually crystallize as insoluble powders and their processing for suitable devices has been thought to be limited. Here, it is demonstrated that COFs can be mechanically pressed into shaped objects having anisotropic ordering with preferred orientation between the hk0 and 00/ crystallographic planes. Pellets prepared from bulk COF powders impregnated with LiClO.sub.4 displayed room temperature conductivity up to 0.26 mS cm.sup.−1 and stability up to 10.0 V (vs. Li.sup.+/Li.sup.0). This outcome portends use of COFs as solid-state electrolytes in batteries.

Provided is a multivalent metal-ion battery comprising an anode, a cathode, a porous separator electronically separating the anode and the cathode, and an electrolyte in ionic contact with the anode and the cathode to support reversible deposition and dissolution of a multivalent metal, selected from Ni, Zn, Be, Mg, Ca, Ba, La, Ti, Ta, Zr, Nb, Mn, V, Co, Fe, Cd, Cr, Ga, In, or a combination thereof, at the anode, wherein the anode contains the multivalent metal or its alloy as an anode active material and the cathode comprises a cathode layer of an exfoliated graphite or carbon material recompressed to form an active layer that is oriented in such a manner that the active layer has a graphite edge plane in direct contact with the electrolyte and facing or contacting the separator.

A method for manufacturing a lithium secondary battery, including the steps: (S1) forming a preliminary negative electrode by coating a negative electrode slurry including a negative electrode active material, conductive material, binder and a solvent onto at least one surface of a current collector, followed by drying and pressing the negative electrode slurry coated current collector, to form a negative electrode active material layer surface on the current collector; (S2) coating lithium metal foil onto the negative electrode active material layer surface of the preliminary negative electrode in the shape of a pattern in which pattern units are arranged; (S3) cutting the preliminary negative electrode on which the lithium metal foil is pattern-coated to obtain negative electrode units; (S4) impregnating the negative electrode units with an electrolyte to obtain a pre-lithiated negative electrode; and (S5) assembling the negative electrode obtained from step (S4) with a positive electrode and a separator.

A flexible multifunctional cross-linking adhesive, a preparation method therefor and an application thereof. The adhesive uses guar gum and carboxyl styrene butadiene rubber as raw materials, and is formed by intermolecular cross-linking between hydroxyl groups rich in the guar gum and carboxyl groups contained in the carboxyl styrene butadiene rubber to form a flexible multifunctional cross-linked network. Compared to the prior art, the water-based adhesive is a flexible cross-linking adhesive that has a strong bonding force, high mechanical strength, and no cracking due to tensile deformation, and is insoluble in a battery electrolyte. The adhesive may effectively accommodate the volume effect of a sulfur positive electrode and keep the positive electrode structure intact during a cycling operation. At the same time, the adhesive has significant advantages such as environmental friendliness and being low cost. The compacted sulfur positive electrode has a simple preparation process and has relatively large application prospects.

An all-solid-state battery cell has a cathode on which a cathode current collector is attached, a solid electrolyte deposited on the cathode opposite the cathode current collector, an anode comprising lithium deposited onto the solid electrolyte opposite the cathode, and an anode current collector bonded to the anode opposite the solid electrolyte with a bonding layer of a metal alloyed with the lithium.

A cathode particle includes a core and an additive. The core includes a lithium (Li) transition metal (M) oxide. The additive, which may be a coating, is disposed at least on an outer surface of the core. The additive includes at least one of selenium (Se), phosphorus (P), boron (B), or tellurium (Te). The additive substantially prevents oxygen anion redox and oxygen loss in an outer portion of the core. The additive may be present below the outer surface of the core. At least a portion of the additive may occupy at least some oxygen vacancies in the core. The cathode particle may have a gradient morphology with the concentration of the additive increasing with radial distance from the center of the cathode particle. The core may have a single-crystalline structure. The core may be Li.sub.xCoO.sub.2 or Li.sub.xNi.sub.1−y−zMn.sub.yCo.sub.zO.sub.2.