Samsung Sdi Co., Inc.

Samsung Sdi., Ltd.

Jin-Man Jeoung

Jung-Woo An

Sumihito Ishida

Eui-Hwan Song

Young-Kee Kim

Dae-Seop Lim

Jeong-Tae Kim

Jin Hong Kim

Kyeu-Yoon Sheem

A rechargeable lithium battery includes a positive electrode including a positive current collector and a positive active mass layer on the positive current collector, the positive active mass layer including a positive active material; a negative electrode including a negative current collector and a negative active mass layer on the negative current collector, the negative active mass layer including a negative active material; and an electrolyte, wherein Equation 1 is satisfied:0.3&#x2264;&#x2264;2.5&#x2003;&#x2003;Equation 1wherein, in Equation 1,

Rechargeable lithium battery

A battery cell includes a first electrode terminal, a second electrode terminal spaced from the first electrode terminal, and at least one sub terminal coupled to one of the first electrode terminal or the second electrode terminal. The at least one sub terminal includes at least one convex area and at least two concave areas. Each of the convex area and the at least two concave areas to establish an electrical connection with an electrode terminal of adjacent battery cells.

Battery cell and battery pack using the same

A secondary battery includes an electrode assembly including a first non-coating portion and a second non-coating portion, a first current collector and a second current collector joined to the first non-coating portion and the second non-coating portion, respectively, a case that accommodates the electrode assembly, and a cap assembly that seals the case. The first current collector includes a first overlapping portion that overlaps and joins the first non-coating portion, the first overlapping portion having a length and a width, and the first non-coating portion having a length and a width. The length of the first overlapping portion is 30% to 70% of the length of the first non-coating portion, and the width of the first overlapping portion is 50% to 70% of the width of the first non-coating portion.

Secondary battery

A secondary battery including a plurality of electrode assemblies including: a first electrode assembly including a first positive electrode active material; and a secondary electrode assembly including a second positive electrode active material; the first electrode assembly and the second electrode assembly being electrically connected to each other, the first positive electrode active material being different from the second positive electrode active material, and a discharge capacity ratio of the second electrode assembly being in a range of 25% to 80%, based on a total discharge capacity of the first electrode assembly and the second electrode assembly, is disclosed.

A positive active material for a rechargeable lithium battery includes a porous material including primary particles, and secondary particles including aggregates of a plurality of the primary particles. The porous material has a tap density of 0.3 to less than 1.0 g/cc. A positive electrode includes the positive active material. A rechargeable lithium battery includes the positive electrode including the positive active material.

Positive active material for rechargeable lithium battery, and positive electrode and rechargeable lithium battery including the same

A positive active material for a rechargeable lithium battery includes a core including a lithiated intercalation compound, and a MgO that is present as an island shape on the core surface and having an average nano-size; a method of manufacturing this positive active material, and a rechargeable lithium battery including this positive active material are provided.

Positive electrode for rechargeable lithium battery, method of preparing same and rechargeable lithium battery including same

A rechargeable lithium battery module includes a first rechargeable lithium battery cell combined with a second rechargeable lithium battery cell, the first rechargeable lithium battery cell being the same or different than the second rechargeable lithium battery cell, and the rechargeable lithium battery module has an output voltage of about 13.6 V to about 15.6 V.

Lithium rechargeable battery module

Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector; and a positive active material layer including an additive which is LiVO(1&#x3c;x&#x3c;4) or a composite of LiVO(1&#x3c;x&#x3c;4) and metal oxide, and a positive active material, and being disposed on the current collector.

Growing community of inventors

Yongin-si, South Korea

Jin-Man Jeoung