Ulvac, Inc.

Samsung Electronics Co., Ltd.

Haruhisa Nakano

Hirohiko Murakami

Yuichi Aihara

Takanobu Yamada

Tatsuhiro Nozue

Tsuyoshi Yoshimoto

Tsutomu Nishihashi

Ryo Omoda

Yoshiaki Fukuda

Masaki Itou

Naoki Tsukahara

Takumi Komiya

A freeze vacuum drying apparatus includes: a spraying unit; a pipe unit; a heating unit; and a collection unit. The spraying unit sprays a raw material liquid into a vacuum chamber. The pipe unit has a non-linear shape, includes a first opening end and a second opening end, and traps frozen particles via the first opening end, the frozen particles being formed by self-freezing of liquid droplets formed by spraying the raw material liquid into the vacuum chamber. The heating unit heats the frozen particles in the pipe unit for sublimation drying, the frozen particles moving in the pipe unit from the first opening end toward the second opening end by kinetic energy produced during spraying. The collection unit collects dried particles that are formed by sublimation drying of the frozen particles in the pipe unit and released from the second opening end of the pipe unit.

Freeze vacuum drying apparatus and freeze vacuum drying method

A positive electrode for an alkali metal-sulfur battery, the positive electrode including: a porous conductive material layer including a plurality of nanocarbon structures of a conductive material, wherein the conductive material defines a plurality of pores between the plurality of nanocarbon structures of the conductive material; sulfur, which is contained in the plurality of pores of the porous conductive material layer; and a polymer film disposed directly on at least a portion of the porous conductive material layer.

Positive electrode having sulfur contained in pores between nanocarbon structures, alkali metal-sulfur battery including the same, and method of preparing the positive electrode

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Yokohama, Japan

Haruhisa Nakano