Samsung Sdi Co., Inc.

Soo-Mi Eo

Yong-Beom Lee

Kwang-Jo Cheong

Hee-Sun Yun

Jea-Woan Lee

Seung-Hee Park

Young-Kwang Cho

Se-Ho Park

Yi-Seop Ahn

Chan Hong

Yu-Mi Ha

A rechargeable battery includes: an electrode assembly including a separator between a first electrode and a second electrode each having uncoated regions and coated regions, and in which the separator, the first electrode, and the second electrode are spirally wound; a case that houses the electrode assembly; and a first electrode tab and a second electrode tab to be drawn outside of the case that are respectively coupled to the uncoated regions of the first electrode and the second electrode while maintaining a tab gap between the first electrode tab and the second electrode tab, where the first electrode tab is coupled to a gap uncoated region between the coated regions of the first electrode, and where in a thickness direction of the electrode assembly, in an area facing the first electrode tab, an internal side end uncoated region of the second electrode is located.

Rechargeable battery

A rechargeable battery includes a wound electrode assembly including a separator between a first electrode and a second electrode, the first and second electrodes each including uncoated regions and coated regions; a case accommodating the electrode assembly; and a first electrode terminal and a second electrode terminal respectively coupled to the first and second electrodes and extending from the case, an uncoated region of the first electrode including inner and outer uncoated regions of a terminal end portion located at an outermost side of the electrode assembly, and the second electrode including an outer uncoated region of a terminal end portion facing the inner uncoated region of the first electrode and an additional inner coated region at an opposite side of the outer uncoated region.

Rechargeable battery comprising first and second electrodes each comprising uncoated regions and coated regions

A rechargeable lithium battery includes a positive active material for intercalating and deintercalating lithium ions; a negative electrode including a negative active material for intercalating and deintercalating lithium ions; and a polymer electrolyte including a polymer, a non-aqueous organic solvent and a lithium salt. The rechargeable lithium battery has a battery capacity per unit area of the positive electrode from about 3.3 mAh/cmto about 2.8 mAh/cm. The polymer includes a first monomer represented by the following Chemical Formula 1 and a second monomer represented by at least one of the following Chemical Formulae 2 to 7 at a weight ratio of about 85:15 to about 50:50 of the first monomer to the second monomer. In the above Chemical Formulae 1 to 7, each compound is as described in the detailed description.

Rechargeable lithium battery

An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the electrolyte includes a lithium salt, a non-aqueous organic solvent, and an additive, In Chemical Formula 1, each substituent is the same as described in the detailed description. 

Electrolyte for rechargeable lithium battery and rechargeable lithium battery including same

An electrolyte solution for a rechargeable lithium battery, including a lithium salt, a non-aqueous organic solvent, and an additive including fluoroethylene carbonate, a vinyl-containing carbonate, a substituted or unsubstituted C2 to C10 cyclic sulfate, and a nitrile-based compound represented by the following Chemical Formula 1: 

Electrolyte solution for rechargeable lithium battery, and rechargeable lithium battery including the same

A rechargeable lithium battery includes a positive electrode including a positive active material being capable of intercalating or deintercalating lithium; a negative electrode including a carbon-based negative active material and a water-soluble binder; and a polymer electrolyte including a polymer, a non-aqueous organic solvent and a lithium salt, wherein the polymer comprises a polymerization product of a first monomer represented by Chemical Formula 1 with a second monomer which is one or more of monomers represented by Chemical Formulae 2 to 7:A-U&#x2014;B&#x2003;&#x2003;Chemical Formula 1CH&#x2550;CL1-C(&#x2550;O)&#x2014;O-M&#x2003;&#x2003;Chemical Formula 2CH&#x2550;CL1-O-M&#x2003;&#x2003;Chemical Formula 3CH&#x2550;CL1-O&#x2014;C(&#x2550;O)-M&#x2003;&#x2003;Chemical Formula 4CH&#x2550;CH&#x2014;CH&#x2014;O-M&#x2003;&#x2003;Chemical Formula 5CH&#x2550;CH&#x2014;S(&#x2550;O)-M&#x2003;&#x2003;Chemical Formula 6CH&#x2550;CL1-C(&#x2550;O)&#x2014;O&#x2014;CHCH&#x2014;NH&#x2014;C(&#x2550;O)&#x2014;O-M&#x2003;&#x2003;Chemical Formula 7

A rechargeable battery including an electrode assembly including a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode; a case housing the electrode assembly; a heat dissipating member including a heat collecting portion inserted in the electrode assembly and a heat dissipating portion protruding outside of the case; and a sealing member between the heat dissipating member and the case, the sealing member including a first polymer layer and a second polymer layer having a melting point that is lower than a melting point of the first polymer layer.

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Yongin-si, South Korea

Soo-Mi Eo