SK On Patente

A battery device is disclosed, the battery device may include a plurality of cell assemblies including a plurality of battery cells; and a housing accommodating the plurality of cell assemblies therein, wherein upper surfaces of the plurality of cell assemblies may be spaced apart from the housing by a certain distance, a first venting passage may be formed in the housing facing the upper surfaces of the plurality of cell assemblies, and a second venting passage may be formed in a space between first side surfaces of the plurality of cell assemblies and the housing.

A composition for forming a solid electrolyte according to embodiments of the present disclosure includes: a liquid electrolyte including a solvent containing a nitrile compound having an ether group, a first lithium salt including a borate compound, and a second lithium salt different from the first lithium salt; and a monomer having a polymerizable functional group. A solid electrolyte according to embodiments of the present disclosure includes a nitrile compound having an ether group, a first lithium salt including a borate compound, a second lithium salt different from the first lithium salt, and a polymer.

A metal oxide precursor particle according to the present disclosure has a hollow structure, includes nickel, cobalt and manganese, and has a median particle diameter of 20 µm to 40 µm. According to a method for preparing metal oxide precursor particles according to the present disclosure, a mixed solution containing water and a metal source including a nickel source, a cobalt source and a manganese source is prepared. The mixed solution is sprayed into a quartz tube. The quartz tube includes a particle formation region therein, and the temperature of the particle formation region is set to 750 °C to 1100 °C. According to a method for preparing a cathode active material of the present disclosure, the metal oxide precursor particles are pulverized to prepare small-sized metal oxide precursor particles. A mixture including the small-sized metal oxide precursor particles and a lithium source is calcined to prepare lithium metal oxide particles.

A composition for forming a solid electrolyte according to embodiments of the present disclosure includes: a liquid electrolyte including a solvent containing a nitrile compound having an ether group and a lithium salt; inorganic electrolyte particles; and a monomer having a polymerizable functional group. A solid electrolyte according to embodiments of the present disclosure includes a nitrile compound having an ether group, a lithium salt, inorganic electrolyte particles, and a polymer.

An electrode assembly includes a first electrode, a second electrode, and a separator located between the first electrode and the second electrode. The first electrode, the second electrode, and the separator are wound in a roll shape. The first electrode includes a first coated portion in which a first active material is coated on a first current collector, and a first uncoated portion adjacent to the first coated portion and formed at one side of the first current collector. The first uncoated portion includes a plurality of cut portions each open to an outside and a plurality of flags partitioned by the plurality of cut portions. A length of each of the plurality of cut portions increases in at least one or more sections in a radial direction from a winding center.

The present disclosure provides a thermal barrier and a battery module, wherein the thermal barrier comprises a heat-absorbing layer comprising a hydrogel, wherein the hydrogel comprises an absorbent polymer and water retained in the absorbent polymer, and the hydrogel comprises 3 to 10 parts by weight absorbent polymer based on 100 parts by weight of water.

An electrode assembly, and a battery cell and a power source including the same are provided. The electrode assembly includes a first electrode plate wound about a winding axis and including a first uncoated portion without a first electrode active material coated thereon, a second electrode plate wound about the winding axis and including a second uncoated portion without a second electrode active material coated thereon, a separator disposed between the first electrode plate and the second electrode plate, and a plurality of segments formed on at least one of the first uncoated portion or the second uncoated portion. The plurality of segments are arranged such that at least one bottom angle is changed in a winding direction.

Disclosed are a use of a refrigerant, a method, and an apparatus for thermal management of a vehicle battery. The refrigerant comprises at least one of a natural refrigerant; a hydrofluorocarbon (HFC)-based refrigerant; a hydrofluoroolefin (HFO)-based refrigerant; a hydrochlorofluorocarbon (HCFC)-based refrigerant; a hydrocarbon-based refrigerant that is not a natural refrigerant; and a halon or a perfluorocarbon (PFC)-based refrigerant, and can be used for thermal management of the vehicle battery by controlling a temperature of said vehicle battery.

A battery pack (100) includes:a pack unit body (140) including at least one battery cell (141);a first cooling plate (110) including a first cooling path (111), along which a refrigerant is circulated, and a first inlet pipe (112) connected to the first cooling path (111);a second cooling plate (120) including a second cooling path (121), along which a refrigerant is circulated, and a second inlet pipe (122) connected to the second cooling path (121) and sealingly coupled to the first inlet pipe (112);a main supply pipe (130) branching from the first inlet pipe (112) or the second inlet pipe (122) and supplying a refrigerant to the first inlet pipe (112) and the second inlet pipe (122);a side frame (170) facing the pack unit body (140);a cover member (180) disposed between at least of the first cooling plate (110) or the second cooling plate (120) and the pack unit body (140) to cover the pack unit body (140); anda partition wall frame(171) connected to the side frame (170) such that a third venting hole (171a) opens toward the pack unit body (140),wherein the side frame (170) has a first venting hole (170a) and a second venting hole (170b) connected to the outside; andwherein the partition wall frame (171) has the third venting hole (171a) connected to the first venting hole (170a) .

Disclosed is a filler composition including a silicone polymer and at least one of a filling material and/or a catalyst. A battery assembly capable of delaying or preventing thermal runaway and/or thermal diffusion is also provided. The battery assembly can be a battery module or a battery pack. Further disclosed is a vehicle comprising at least one such battery module or battery pack.

An electrolyte for a lithium secondary battery according to exemplary embodiments includes an additive including a compound having a specific structure, an organic solvent and a lithium salt. Accordingly, a lithium secondary battery including the electrolyte for a lithium secondary battery exhibits improved low-temperature properties and high-temperature stability.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …