Abstract: Embodiments of the present disclosure are drawn to a wave-absorbing material that includes a main composition, an auxiliary composition, and a sintering additive. The main composition includes at least one of Fe2O3, MnO, ZnO, and MgO. The auxiliary composition includes at least one of CeO2 and P2O5. The molar ratio of CeO2 to P2O5 ranges from about 1:1 to about 2:1. A method for preparing the wave-absorbing material is also provided.

Abstract: A wireless charging device (100) includes a shell (1), a heat conduction plate (2), a charging assembly (4) and a connecting assembly (5). The heat conduction plate (2) includes a first portion (201), a second portion (202) parallel with the first portion (201) and contacted with an inner surface of the shell (1), and a third portion (203) connecting a lower edge of the first portion (201) to a lower edge of the second portion (202). The charging assembly (4) is disposed between the first and second portions (201,202) and includes a circuit board, a chip (401) disposed on the circuit board and contacted with the first portion (201), a charging coil and an exciting unit. The connecting assembly (5) defines a first end electrically connected with the circuit board. A method for charging an apparatus with the wireless charging device (100) is also provided.

Abstract: Embodiments of the present disclosure are drawn to a wave-absorbing material that includes a main composition, an auxiliary composition, and a sintering additive. The main composition includes at least one of Fe2O3, MnO, ZnO, and MgO. The auxiliary composition includes at least one of CeO2 and P2O5. The molar ratio of CeO2 to P2O5 ranges from about 1:1 to about 2:1. A method for preparing the wave-absorbing material is also provided.

Abstract: A wireless charging device (100) includes a shell (1), a heat conduction plate (2), a charging assembly (4) and a connecting assembly (5). The heat conduction plate (2) includes a first portion (201), a second portion (202) parallel with the first portion (201) and contacted with an inner surface of the shell (1), and a third portion (203) connecting a lower edge of the first portion (201) to a lower edge of the second portion (202). The charging assembly (4) is disposed between the first and second portions (201,202) and includes a circuit board, a chip (401) disposed on the circuit board and contacted with the first portion (201), a charging coil and an exciting unit. The connecting assembly (5) defines a first end electrically connected with the circuit board. A method for charging an apparatus with the wireless charging device (100) is also provided.